#37271E
Closest named color: Dark Brown (#341C02). oklch(28.9% 0.029 50.6), rgb(55, 39, 30).
Aa
White text reads best on this color (14.27:1).
About this color
#37271E is a dark close to neutral grey. In OKLCH its lightness is 29%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Dark Brown (#341C02), ΔE 0.045 away. White text reads best on it, at 14.27:1.
| Hue family | Neutrals |
| Lightness | dark (29%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.47:1 |
| White text | 14.27:1 |
Values
| HEX | #37271E |
| RGB | rgb(55, 39, 30) |
| HSL | hsl(22, 29%, 17%) |
| OKLCH | oklch(28.9% 0.029 50.6) |
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 #37271E | 14.27:1 | AAA | Lc -103.9 | Preferred for body text |
| Black text on #37271E | 1.47:1 | Fails | Lc 0.0 | Not readable |
| #37271E text on white | 14.27:1 | AAA | Lc 101.0 | Preferred for body text |
| #37271E 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
#F8F5F3
oklch(97.2% 0.004 56.4)
-
Step 100
100
#F0E8E4
oklch(93.6% 0.01 48.6)
-
Step 200
200
#E4D6CE
oklch(88.5% 0.019 51.9)
-
Step 300
300
#D4BBAD
oklch(81% 0.035 51.2)
-
Step 400
400
#BD9782
oklch(70.6% 0.055 50.4)
-
Step 500
500
#AC7D63
oklch(63% 0.07 50)
-
Step 600
600
#97664A
oklch(55.5% 0.075 50.4)
-
Step 700
700
#81553B
oklch(49.2% 0.07 51.1)
-
Step 800
800
#694531
oklch(42.6% 0.059 49.7)
-
Step 900
900
#553B2B
oklch(37.8% 0.045 52.5)
-
Step 950
950 (this color)
#37271E
oklch(28.9% 0.029 50.6)
#37271E 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) | #2B281D | 0.024 |
| Deuteranopia (no green cones) | #2F2C1E | 0.022 |
| Tritanopia (no blue cones) | #3B2425 | 0.020 |
| Achromatopsia (no color) | #2A2A2A | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37271E
#37271E
oklch(28.9% 0.029 50.6)
- #1C2E37
#1C2E37
oklch(29% 0.029 230.7)
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 #37271E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.045
- Jet #212529 ΔE 0.047
- Chocolate Brown #411900 ΔE 0.047
- Pakistan Green #283618 ΔE 0.060
- Gunmetal #293241 ΔE 0.063
- Space Cadet #2B2D42 ΔE 0.063
- Dark #1B2431 ΔE 0.063
- Onyx #343A40 ΔE 0.070
Use #37271E 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.