#A6631E
Closest named color: Raw Umber (#A75E09). oklch(56.3% 0.117 61.2), rgb(166, 99, 30).
Aa
White text reads best on this color (4.74:1).
About this color
#A6631E is a medium-dark, moderately saturated brown. In OKLCH its lightness is 56%, its chroma 0.117 and its hue 61°. Its hue sits on the warm side of the wheel. The nearest named color is Raw Umber (#A75E09), ΔE 0.013 away. White text reads best on it, at 4.74:1.
| Hue family | Browns |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.117) |
| Temperature | warm |
| Nearest name | Raw Umber (#A75E09) |
| Black text | 4.42:1 |
| White text | 4.74:1 |
Values
| HEX | #A6631E |
| RGB | rgb(166, 99, 30) |
| HSL | hsl(30, 69%, 38%) |
| OKLCH | oklch(56.3% 0.117 61.2) |
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 #A6631E | 4.74:1 | AA | Lc -78.1 | Fine for body text |
| Black text on #A6631E | 4.42:1 | AA large text | Lc 31.5 | Non-text elements, placeholder text |
| #A6631E text on white | 4.74:1 | AA | Lc 72.6 | Content text, not long reading |
| #A6631E text on black | 4.42:1 | AA large text | Lc -29.1 | Dividers and decoration only |
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 600.
-
Step 50
50
#F9F4F1
oklch(97% 0.007 53.4)
-
Step 100
100
#F2E8E0
oklch(93.7% 0.015 61.3)
-
Step 200
200
#E8D5C6
oklch(88.4% 0.029 60.7)
-
Step 300
300
#DAB99F
oklch(80.8% 0.052 60.2)
-
Step 400
400
#C79569
oklch(70.7% 0.084 62.2)
-
Step 500
500
#B8793F
oklch(63% 0.108 61.3)
-
Step 600
600 (this color)
#A6631E
oklch(56.3% 0.117 61.2)
-
Step 700
700
#8C500B
oklch(49.2% 0.109 61.5)
-
Step 800
800
#72420F
oklch(42.8% 0.091 61.5)
-
Step 900
900
#5C3815
oklch(37.7% 0.071 61.7)
-
Step 950
950
#36210E
oklch(27% 0.044 61.2)
#A6631E 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) | #786A12 | 0.084 |
| Deuteranopia (no green cones) | #88791F | 0.075 |
| Tritanopia (no blue cones) | #B65456 | 0.085 |
| Achromatopsia (no color) | #737373 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A6631E
#A6631E
oklch(56.3% 0.117 61.2)
- #237DB4
#237DB4
oklch(56.4% 0.118 241.1)
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 #A6631E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Raw Umber #A75E09 ΔE 0.013
- Orangey Brown #B16002 ΔE 0.021
- Umber #B26400 ΔE 0.024
- Raw Sienna #9A6200 ΔE 0.027
- Earth #A2653E ΔE 0.027
- Copper #B66325 ΔE 0.031
- Sepia #985E2B ΔE 0.032
- Caramel #AF6F09 ΔE 0.039
Use #A6631E 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.