#63240A
Closest named color: Reddy Brown (#6E1005). oklch(35% 0.098 40.4), rgb(99, 36, 10).
Aa
White text reads best on this color (11.74:1).
About this color
#63240A is a dark, moderately saturated brown. In OKLCH its lightness is 35%, its chroma 0.098 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.036 away. White text reads best on it, at 11.74:1.
| Hue family | Browns |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.098) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.78:1 |
| White text | 11.74:1 |
Values
| HEX | #63240A |
| RGB | rgb(99, 36, 10) |
| HSL | hsl(18, 82%, 21%) |
| OKLCH | oklch(35% 0.098 40.4) |
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 #63240A | 11.74:1 | AAA | Lc -100.0 | Preferred for body text |
| Black text on #63240A | 1.78:1 | Fails | Lc 7.6 | Not readable |
| #63240A text on white | 11.74:1 | AAA | Lc 96.3 | Preferred for body text |
| #63240A text on black | 1.78:1 | 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 900.
-
Step 50
50
#FCF3F0
oklch(97% 0.011 39.4)
-
Step 100
100
#F7E6DF
oklch(93.7% 0.021 43.9)
-
Step 200
200
#F2D1C5
oklch(88.5% 0.041 41)
-
Step 300
300
#EBB19D
oklch(80.9% 0.074 39.9)
-
Step 400
400
#DE8666
oklch(70.6% 0.118 40.6)
-
Step 500
500
#D3643B
oklch(63.1% 0.151 40.2)
-
Step 600
600
#BE4813
oklch(55.6% 0.163 40.5)
-
Step 700
700
#A43801
oklch(49.1% 0.152 40.4)
-
Step 800
800
#853009
oklch(42.8% 0.126 40.7)
-
Step 900
900 (this color)
#63240A
oklch(35% 0.098 40.4)
-
Step 950
950
#3F1A0D
oklch(27% 0.062 39.6)
#63240A 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) | #362F06 | 0.096 |
| Deuteranopia (no green cones) | #453D07 | 0.088 |
| Tritanopia (no blue cones) | #6E141F | 0.046 |
| Achromatopsia (no color) | #383838 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63240A
#63240A
oklch(35% 0.098 40.4)
- #004252
#004252
oklch(35.1% 0.064 220.6)
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 #63240A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.036
- Chestnut #742802 ΔE 0.040
- Blood #770001 ΔE 0.055
- Claret #680018 ΔE 0.059
- Maroon #800000 ΔE 0.067
- Wine Red #7B0323 ΔE 0.072
- Burgundy #610023 ΔE 0.074
- Purple Brown #673A3F ΔE 0.075
Use #63240A 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.