#37121F
Closest named color: Dark Maroon (#3C0008). oklch(24.6% 0.061 0.6), rgb(55, 18, 31).
Aa
White text reads best on this color (16.55:1).
About this color
#37121F is a very dark, muted red. In OKLCH its lightness is 25%, its chroma 0.061 and its hue 1°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.044 away. White text reads best on it, at 16.55:1.
| Hue family | Reds |
| Lightness | very dark (25%) |
| Chroma | muted (0.061) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.26:1 |
| White text | 16.55:1 |
Values
| HEX | #37121F |
| RGB | rgb(55, 18, 31) |
| HSL | hsl(339, 51%, 14%) |
| OKLCH | oklch(24.6% 0.061 0.6) |
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 #37121F | 16.55:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #37121F | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #37121F text on white | 16.55:1 | AAA | Lc 103.2 | Preferred for body text |
| #37121F text on black | 1.26:1 | 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
#FBF3F5
oklch(97.1% 0.009 0.1)
-
Step 100
100
#F7E4E9
oklch(93.5% 0.022 359.7)
-
Step 200
200
#F1CFD8
oklch(88.6% 0.04 0.2)
-
Step 300
300
#E9AEBE
oklch(81% 0.072 0.9)
-
Step 400
400
#DB819D
oklch(70.7% 0.115 0.5)
-
Step 500
500
#CF5E85
oklch(63.2% 0.148 0.5)
-
Step 600
600
#BA416E
oklch(55.6% 0.16 0.8)
-
Step 700
700
#A0325C
oklch(49.2% 0.149 0.9)
-
Step 800
800
#822A4B
oklch(42.7% 0.124 0.8)
-
Step 900
900
#69283F
oklch(37.8% 0.096 0.7)
-
Step 950
950 (this color)
#37121F
oklch(24.6% 0.061 0.6)
#37121F 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) | #181A1F | 0.068 |
| Deuteranopia (no green cones) | #22211E | 0.062 |
| Tritanopia (no blue cones) | #3C0F17 | 0.018 |
| Achromatopsia (no color) | #1F1F1F | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #37121F
#37121F
oklch(24.6% 0.061 0.6)
- #002722
#002722
oklch(24.5% 0.044 182.3)
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 #37121F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.044
- Dark Plum #3F012C ΔE 0.047
- Aubergine #3D0734 ΔE 0.051
- Deep Brown #410200 ΔE 0.052
- Eggplant #380835 ΔE 0.052
- Mahogany #4A0100 ΔE 0.060
- Chocolate Brown #411900 ΔE 0.061
- Dark Brown #341C02 ΔE 0.062
Use #37121F 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.