#42251D
Closest named color: Chocolate Brown (#411900). oklch(30% 0.047 36.2), rgb(66, 37, 29).
Aa
White text reads best on this color (13.87:1).
About this color
#42251D is a dark, muted red. In OKLCH its lightness is 30%, its chroma 0.047 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.042 away. White text reads best on it, at 13.87:1.
| Hue family | Reds |
| Lightness | dark (30%) |
| Chroma | muted (0.047) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.51:1 |
| White text | 13.87:1 |
Values
| HEX | #42251D |
| RGB | rgb(66, 37, 29) |
| HSL | hsl(13, 39%, 19%) |
| OKLCH | oklch(30% 0.047 36.2) |
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 #42251D | 13.87:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #42251D | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #42251D text on white | 13.87:1 | AAA | Lc 100.3 | Preferred for body text |
| #42251D text on black | 1.51:1 | 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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F4E6E3
oklch(93.5% 0.016 32)
-
Step 200
200
#ECD3CB
oklch(88.5% 0.03 38.6)
-
Step 300
300
#E2B5A8
oklch(81% 0.056 36.7)
-
Step 400
400
#D18D7A
oklch(70.7% 0.088 36.3)
-
Step 500
500
#C46F58
oklch(63.2% 0.114 36)
-
Step 600
600
#AF553D
oklch(55.5% 0.124 35.9)
-
Step 700
700
#96452F
oklch(49.1% 0.115 36.2)
-
Step 800
800
#7A3928
oklch(42.7% 0.095 35.7)
-
Step 900
900
#623225
oklch(37.6% 0.073 36.1)
-
Step 950
950 (this color)
#42251D
oklch(30% 0.047 36.2)
#42251D 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) | #2C291C | 0.045 |
| Deuteranopia (no green cones) | #332F1D | 0.042 |
| Tritanopia (no blue cones) | #482023 | 0.023 |
| Achromatopsia (no color) | #2C2C2C | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #42251D
#42251D
oklch(30% 0.047 36.2)
- #0A333D
#0A333D
oklch(29.9% 0.047 217.8)
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 #42251D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.042
- Dark Brown #341C02 ΔE 0.053
- Jet #212529 ΔE 0.067
- Mahogany #4A0100 ΔE 0.072
- Space Cadet #2B2D42 ΔE 0.072
- Gunmetal #293241 ΔE 0.073
- Pakistan Green #283618 ΔE 0.074
- Onyx #343A40 ΔE 0.074
Use #42251D 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.