#37281F
Closest named color: Dark Brown (#341C02). oklch(29.2% 0.028 52.3), rgb(55, 40, 31).
Aa
White text reads best on this color (14.13:1).
About this color
#37281F is a dark close to neutral grey. In OKLCH its lightness is 29%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Dark Brown (#341C02), ΔE 0.047 away. White text reads best on it, at 14.13:1.
| Hue family | Neutrals |
| Lightness | dark (29%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.48:1 |
| White text | 14.13:1 |
Values
| HEX | #37281F |
| RGB | rgb(55, 40, 31) |
| HSL | hsl(22, 28%, 17%) |
| OKLCH | oklch(29.2% 0.028 52.3) |
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 #37281F | 14.13:1 | AAA | Lc -103.8 | Preferred for body text |
| Black text on #37281F | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #37281F text on white | 14.13:1 | AAA | Lc 100.8 | Preferred for body text |
| #37281F text on black | 1.48:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F8F5F3
oklch(97.2% 0.004 56.4)
-
Step 100
100
#EFE8E4
oklch(93.5% 0.009 52.1)
-
Step 200
200
#E3D6CE
oklch(88.4% 0.018 54)
-
Step 300
300
#D3BBAE
oklch(80.9% 0.033 50.3)
-
Step 400
400
#BC9883
oklch(70.7% 0.053 51.8)
-
Step 500
500
#AA7E64
oklch(63% 0.066 51.7)
-
Step 600
600
#95674B
oklch(55.5% 0.072 52)
-
Step 700
700
#7F563C
oklch(49.1% 0.067 52.9)
-
Step 800
800
#684632
oklch(42.7% 0.056 51.2)
-
Step 900
900
#543B2C
oklch(37.6% 0.043 52)
-
Step 950
950 (this color)
#37281F
oklch(29.2% 0.028 52.3)
#37281F 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) | #2C291E | 0.022 |
| Deuteranopia (no green cones) | #302C1F | 0.018 |
| Tritanopia (no blue cones) | #3B2526 | 0.020 |
| Achromatopsia (no color) | #2B2B2B | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37281F
#37281F
oklch(29.2% 0.028 52.3)
- #1E2E37
#1E2E37
oklch(29.1% 0.027 233.6)
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 #37281F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.047
- Jet #212529 ΔE 0.047
- Chocolate Brown #411900 ΔE 0.050
- Pakistan Green #283618 ΔE 0.058
- Gunmetal #293241 ΔE 0.060
- Space Cadet #2B2D42 ΔE 0.062
- Dark #1B2431 ΔE 0.064
- Onyx #343A40 ΔE 0.067
Use #37281F 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.