#37271D
Closest named color: Dark Brown (#341C02). oklch(28.9% 0.03 53.2), rgb(55, 39, 29).
Aa
White text reads best on this color (14.28:1).
About this color
#37271D is a dark close to neutral grey. In OKLCH its lightness is 29%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Dark Brown (#341C02), ΔE 0.043 away. White text reads best on it, at 14.28:1.
| Hue family | Neutrals |
| Lightness | dark (29%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.47:1 |
| White text | 14.28:1 |
Values
| HEX | #37271D |
| RGB | rgb(55, 39, 29) |
| HSL | hsl(23, 31%, 16%) |
| OKLCH | oklch(28.9% 0.03 53.2) |
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 #37271D | 14.28:1 | AAA | Lc -103.9 | Preferred for body text |
| Black text on #37271D | 1.47:1 | Fails | Lc 0.0 | Not readable |
| #37271D text on white | 14.28:1 | AAA | Lc 101.0 | Preferred for body text |
| #37271D text on black | 1.47:1 | 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
#F8F5F2
oklch(97.2% 0.005 67.8)
-
Step 100
100
#F0E8E4
oklch(93.6% 0.01 48.6)
-
Step 200
200
#E4D6CD
oklch(88.5% 0.02 55.1)
-
Step 300
300
#D4BBAC
oklch(80.9% 0.035 53)
-
Step 400
400
#BE9780
oklch(70.7% 0.057 52)
-
Step 500
500
#AD7E60
oklch(63.2% 0.072 53.6)
-
Step 600
600
#986646
oklch(55.6% 0.079 53)
-
Step 700
700
#815538
oklch(49.1% 0.072 53.6)
-
Step 800
800
#69462F
oklch(42.8% 0.06 53.8)
-
Step 900
900
#563B2A
oklch(37.9% 0.047 53)
-
Step 950
950 (this color)
#37271D
oklch(28.9% 0.03 53.2)
#37271D 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) | #2B281C | 0.024 |
| Deuteranopia (no green cones) | #2F2C1D | 0.022 |
| Tritanopia (no blue cones) | #3B2424 | 0.020 |
| Achromatopsia (no color) | #2A2A2A | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37271D
#37271D
oklch(28.9% 0.03 53.2)
- #1C2E38
#1C2E38
oklch(29% 0.03 233.5)
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 #37271D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.043
- Chocolate Brown #411900 ΔE 0.046
- Jet #212529 ΔE 0.047
- Pakistan Green #283618 ΔE 0.059
- Gunmetal #293241 ΔE 0.064
- Dark #1B2431 ΔE 0.064
- Space Cadet #2B2D42 ΔE 0.064
- Onyx #343A40 ΔE 0.071
Use #37271D 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.