#37402D
Closest named color: Charcoal Grey (#3C4142). oklch(35.7% 0.034 128.6), rgb(55, 64, 45).
Aa
White text reads best on this color (10.86:1).
About this color
#37402D is a dark, muted green. In OKLCH its lightness is 36%, its chroma 0.034 and its hue 129°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.036 away. White text reads best on it, at 10.86:1.
| Hue family | Greens |
| Lightness | dark (36%) |
| Chroma | muted (0.034) |
| Temperature | in between |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.93:1 |
| White text | 10.86:1 |
Values
| HEX | #37402D |
| RGB | rgb(55, 64, 45) |
| HSL | hsl(88, 17%, 21%) |
| OKLCH | oklch(35.7% 0.034 128.6) |
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 #37402D | 10.86:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #37402D | 1.93:1 | Fails | Lc 8.7 | Not readable |
| #37402D text on white | 10.86:1 | AAA | Lc 95.2 | Preferred for body text |
| #37402D text on black | 1.93:1 | Fails | Lc -7.5 | 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
#F5F6F3
oklch(97.2% 0.004 121.6)
-
Step 100
100
#E8EBE6
oklch(93.6% 0.007 132.4)
-
Step 200
200
#D6DBD1
oklch(88.5% 0.015 128.6)
-
Step 300
300
#BCC4B3
oklch(80.9% 0.025 127.7)
-
Step 400
400
#99A68B
oklch(70.7% 0.041 128.4)
-
Step 500
500
#80906F
oklch(63.1% 0.051 128.8)
-
Step 600
600
#697A57
oklch(55.6% 0.056 129.1)
-
Step 700
700
#586747
oklch(49.2% 0.052 128.6)
-
Step 800
800
#48543A
oklch(42.8% 0.044 128.3)
-
Step 900
900 (this color)
#37402D
oklch(35.7% 0.034 128.6)
-
Step 950
950
#23291D
oklch(27.1% 0.023 129.5)
#37402D 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) | #423D2C | 0.020 |
| Deuteranopia (no green cones) | #413D2E | 0.019 |
| Tritanopia (no blue cones) | #383E3B | 0.027 |
| Achromatopsia (no color) | #3D3D3D | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37402D
#37402D
oklch(35.7% 0.034 128.6)
- #41384A
#41384A
oklch(35.7% 0.033 307.4)
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 #37402D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.036
- Onyx #343A40 ΔE 0.044
- Dark Olive #373E02 ΔE 0.047
- Pakistan Green #283618 ΔE 0.049
- Evergreen #05472A ΔE 0.053
- Dark Slate Gray #2F4F4F ΔE 0.061
- Charcoal #264653 ΔE 0.061
- Pine Green #0A481E ΔE 0.062
Use #37402D 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.