#3B3F40Tamahagane (#3B3F40) is a grey neutral with an OKLCH hue of 214°, lightness 0.36 and chroma 0.006. In practice it behaves as a mid-weight working color for secondary surfaces and editorial blocks.
| HEX | #3B3F40 |
|---|---|
| RGB | rgb(59, 63, 64) |
| HSL | hsl(192, 4%, 24%) |
| HSV | hsv(192, 8%, 25%) |
| CMYK | cmyk(8%, 2%, 0%, 75%) |
| CIE Lab | lab(26.3 -1.4 -1.2) |
| OKLCH | oklch(0.364 0.006 214) |
Under warm 2700K interior light Tamahagane is virtually unchanged; in north-facing or shaded light it is virtually unchanged. Overall drift across common illuminants is small (max ΔE ≈ 0.9), so it is a lighting-stable choice.
#3e3d3b — ΔE 0.9, is virtually unchanged#3e3f3e — ΔE 0.6, is virtually unchanged#3b3f40 — ΔE 0.0, is virtually unchanged#3b3f41 — ΔE 0.2, is virtually unchangedTest Tamahagane in the color lighting simulator — sweep it through daylight, warm 2700K light, 4000K LED, and shade alongside the rest of your palette.
Against white it measures 10.65:1 and against black 1.97:1, so white text is the stronger pairing. That pairing passes WCAG AA for body text. Avoid black text on this color entirely.
One color explored: close hues with real lightness and chroma structure, so the palette is the anchor through value rather than a set of colors.
#9a9d9e · #757879 · #515556 · #3b3f40 · #131617 · #010202
The anchor's neighbours on the wheel — everything shares an undertone, so the chord carries color without anything having to be muted to get along.
#4d7b68 · #2f6b62 · #095a5c · #3b3f40 · #003549 · #04233c
The mid-gap pairing — sage and mustard, terracotta and olive. A foil rotated 40–65° toward warm or cool: too far to be kin, too near to argue, carried by temperature and a deliberate value offset.
#a6b2ce · #679daa · #6175a2 · #4f596f · #3b3f40 · #002b33
One deliberately opposed voice — a single restrained counterpoint across the wheel, or temperature against temperature where the anchor is too muted to carry a loud opposite.
#adc4ca · #ba8072 · #4e6064 · #3b3f40 · #04282f · #000d12
The anchor as the only color in the room. True neutrals or complement-warmed near-neutrals let it stay dominant.
#f9efed · #b1bec1 · #8c8584 · #4b595d · #3b3f40 · #2d2524
This color as a ground rather than a subject — its own restraint held across a narrow value band, carrying one saturated voice from the opposite temperature.
#f0f2f3 · #cacccd · #a0a3a3 · #3b3f40 · #0d1010 · #ea5c3b
The same quiet ground carrying one bright gold voice — the high-energy pairing a cool or muted anchor cannot reach through its own temperature.
#f0f2f3 · #cacccd · #a0a3a3 · #3b3f40 · #0d1010 · #ecbd4d
The opposite hue on the perceptual wheel, tempered to field strength — warm/cool tension without vibration.
#ffede9 · #dfaea2 · #af7769 · #76493e · #3b3f40 · #0e2c33
The complement's two neighbours instead of the complement itself — strong contrast with a lower clash risk.
#ffede9 · #deacb6 · #a77e56 · #754752 · #3b3f40 · #342313
Three hues spaced evenly around the wheel; the anchor leads and the other two are held at supporting strength.
#fcecf8 · #d4adcb · #968751 · #62562a · #3b3f40 · #33202f
Two complementary pairs offset by 90° — the richest chord, kept usable by a strict lightness hierarchy.
#f5eefe · #c3b2db · #af7769 · #4f5d34 · #3b3f40 · #38211b
#5c5f60 · #7c7f80 · #9d9fa0 · #bebfbf · #dedfdf
#313535 · #272a2b · #1e2020 · #141515 · #0a0b0b
Its moderate chroma lets it work in mid-size areas — upholstery, secondary UI surfaces, editorial blocks — without overwhelming neighbors.