#37150F
Closest named color: Dark Brown (#341C02). oklch(24.6% 0.056 31.6), rgb(55, 21, 15).
Aa
White text reads best on this color (16.44:1).
About this color
#37150F is a very dark, muted red. In OKLCH its lightness is 25%, its chroma 0.056 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.032 away. White text reads best on it, at 16.44:1.
| Hue family | Reds |
| Lightness | very dark (25%) |
| Chroma | muted (0.056) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.27:1 |
| White text | 16.44:1 |
Values
| HEX | #37150F |
| RGB | rgb(55, 21, 15) |
| HSL | hsl(9, 57%, 14%) |
| OKLCH | oklch(24.6% 0.056 31.6) |
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 #37150F | 16.44:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #37150F | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #37150F text on white | 16.44:1 | AAA | Lc 103.1 | Preferred for body text |
| #37150F text on black | 1.27:1 | 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
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F6E6E2
oklch(93.7% 0.018 34.3)
-
Step 200
200
#F1D1CA
oklch(88.6% 0.037 32.4)
-
Step 300
300
#E8B1A6
oklch(80.8% 0.067 31.4)
-
Step 400
400
#DB8777
oklch(70.8% 0.107 31.5)
-
Step 500
500
#CE6654
oklch(63% 0.136 31.3)
-
Step 600
600
#BA4B38
oklch(55.7% 0.148 31.8)
-
Step 700
700
#A03B2B
oklch(49.2% 0.138 31.4)
-
Step 800
800
#823224
oklch(42.8% 0.114 32)
-
Step 900
900
#692D22
oklch(37.8% 0.089 32.1)
-
Step 950
950 (this color)
#37150F
oklch(24.6% 0.056 31.6)
#37150F 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) | #1E1B0E | 0.057 |
| Deuteranopia (no green cones) | #26220E | 0.053 |
| Tritanopia (no blue cones) | #3D0F14 | 0.022 |
| Achromatopsia (no color) | #1F1F1F | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37150F
#37150F
oklch(24.6% 0.056 31.6)
- #00262C
#00262C
oklch(24.6% 0.043 210.4)
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 #37150F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.032
- Chocolate Brown #411900 ΔE 0.034
- Deep Brown #410200 ΔE 0.039
- Dark Maroon #3C0008 ΔE 0.043
- Mahogany #4A0100 ΔE 0.050
- Jet #212529 ΔE 0.066
- Dark Plum #3F012C ΔE 0.077
- Dark #1B2431 ΔE 0.079
Use #37150F 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.