#662903
Closest named color: Chestnut (#742802). oklch(36.3% 0.099 46.2), rgb(102, 41, 3).
Aa
White text reads best on this color (11.14:1).
About this color
#662903 is a dark, moderately saturated brown. In OKLCH its lightness is 36%, its chroma 0.099 and its hue 46°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.030 away. White text reads best on it, at 11.14:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.099) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 1.88:1 |
| White text | 11.14:1 |
Values
| HEX | #662903 |
| RGB | rgb(102, 41, 3) |
| HSL | hsl(23, 94%, 21%) |
| OKLCH | oklch(36.3% 0.099 46.2) |
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 #662903 | 11.14:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #662903 | 1.88:1 | Fails | Lc 8.8 | Not readable |
| #662903 text on white | 11.14:1 | AAA | Lc 95.1 | Preferred for body text |
| #662903 text on black | 1.88:1 | Fails | Lc -7.5 | 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
#FCF4F0
oklch(97.2% 0.01 48.6)
-
Step 100
100
#F7E6DE
oklch(93.6% 0.022 47)
-
Step 200
200
#F1D1C3
oklch(88.4% 0.041 45)
-
Step 300
300
#EAB298
oklch(80.8% 0.075 46)
-
Step 400
400
#DD885E
oklch(70.7% 0.119 46.5)
-
Step 500
500
#D1672D
oklch(63.1% 0.151 46.3)
-
Step 600
600
#B94E00
oklch(55.5% 0.156 46.2)
-
Step 700
700
#9D4100
oklch(49.2% 0.138 46.2)
-
Step 800
800
#813400
oklch(42.6% 0.119 46.2)
-
Step 900
900 (this color)
#662903
oklch(36.3% 0.099 46.2)
-
Step 950
950
#3E1B08
oklch(26.9% 0.062 46.7)
#662903 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) | #3B3300 | 0.091 |
| Deuteranopia (no green cones) | #4A4101 | 0.083 |
| Tritanopia (no blue cones) | #711A22 | 0.053 |
| Achromatopsia (no color) | #3B3B3B | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #662903
#662903
oklch(36.3% 0.099 46.2)
- #00455A
#00455A
oklch(36.4% 0.07 226.2)
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 #662903, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.030
- Reddy Brown #6E1005 ΔE 0.045
- Blood #770001 ΔE 0.060
- Maroon #800000 ΔE 0.068
- Purple Brown #673A3F ΔE 0.071
- Claret #680018 ΔE 0.072
- Mud Brown #60460F ΔE 0.075
- Wine Red #7B0323 ΔE 0.078
Use #662903 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.