#39402F
Closest named color: Charcoal Grey (#3C4142). oklch(36% 0.03 126), rgb(57, 64, 47).
Aa
White text reads best on this color (10.77:1).
About this color
#39402F is a dark close to neutral grey. In OKLCH its lightness is 36%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.032 away. White text reads best on it, at 10.77:1.
| Hue family | Neutrals |
| Lightness | dark (36%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.94:1 |
| White text | 10.77:1 |
Values
| HEX | #39402F |
| RGB | rgb(57, 64, 47) |
| HSL | hsl(85, 15%, 22%) |
| OKLCH | oklch(36% 0.03 126) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #39402F | 10.77:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #39402F | 1.94:1 | Fails | Lc 8.9 | Not readable |
| #39402F text on white | 10.77:1 | AAA | Lc 95.0 | Preferred for body text |
| #39402F text on black | 1.94:1 | Fails | Lc -7.6 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F5F6F4
oklch(97.2% 0.003 128.5)
-
Step 100
100
#E9EBE6
oklch(93.7% 0.007 124.5)
-
Step 200
200
#D7DBD2
oklch(88.6% 0.013 126.4)
-
Step 300
300
#BDC3B4
oklch(80.8% 0.022 124.7)
-
Step 400
400
#9BA58D
oklch(70.7% 0.036 125.8)
-
Step 500
500
#828F71
oklch(63.1% 0.046 126.7)
-
Step 600
600
#6C7959
oklch(55.6% 0.05 125.9)
-
Step 700
700
#5A6649
oklch(49.2% 0.047 126.3)
-
Step 800
800
#4A533C
oklch(42.7% 0.038 125.3)
-
Step 900
900 (this color)
#39402F
oklch(36% 0.03 126)
-
Step 950
950
#24281E
oklch(26.9% 0.019 125.4)
#39402F with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #423E2E | 0.015 |
| Deuteranopia (no green cones) | #413D30 | 0.016 |
| Tritanopia (no blue cones) | #3A3E3B | 0.023 |
| Achromatopsia (no color) | #3E3E3E | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39402F
#39402F
oklch(36% 0.03 126)
- #41394A
#41394A
oklch(36% 0.031 306.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #39402F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.032
- Onyx #343A40 ΔE 0.041
- Dark Olive #373E02 ΔE 0.051
- Pakistan Green #283618 ΔE 0.053
- Evergreen #05472A ΔE 0.057
- Dark Slate Gray #2F4F4F ΔE 0.058
- Charcoal #264653 ΔE 0.059
- Dark Teal #014D4E ΔE 0.065
Use #39402F in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.