#B7640B
Closest named color: Umber (#B26400). oklch(58.7% 0.137 58.1), rgb(183, 100, 11).
Aa
Black text reads best on this color (4.84:1).
About this color
#B7640B is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.137 and its hue 58°. Its hue sits on the warm side of the wheel. The nearest named color is Umber (#B26400), ΔE 0.010 away. Black text reads best on it, at 4.84:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.137) |
| Temperature | warm |
| Nearest name | Umber (#B26400) |
| Black text | 4.84:1 |
| White text | 4.33:1 |
Values
| HEX | #B7640B |
| RGB | rgb(183, 100, 11) |
| HSL | hsl(31, 89%, 38%) |
| OKLCH | oklch(58.7% 0.137 58.1) |
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 #B7640B | 4.33:1 | AA large text | Lc -75.0 | Fine for body text |
| Black text on #B7640B | 4.84:1 | AA | Lc 34.5 | Non-text elements, placeholder text |
| #B7640B text on white | 4.33:1 | AA large text | Lc 69.6 | Content text, not long reading |
| #B7640B text on black | 4.84:1 | AA | Lc -32.1 | Non-text elements, placeholder text |
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
#FAF4F0
oklch(97.1% 0.008 56.3)
-
Step 100
100
#F4E7DE
oklch(93.6% 0.019 57.2)
-
Step 200
200
#EBD4C3
oklch(88.4% 0.034 58.8)
-
Step 300
300
#E0B79A
oklch(80.8% 0.062 57)
-
Step 400
400
#CF9161
oklch(70.7% 0.099 58)
-
Step 500
500
#C17431
oklch(63.1% 0.126 58.1)
-
Step 600
600 (this color)
#B7640B
oklch(58.7% 0.137 58.1)
-
Step 700
700
#904C00
oklch(49% 0.117 57.9)
-
Step 800
800
#773E00
oklch(42.7% 0.102 58.2)
-
Step 900
900
#61350B
oklch(37.7% 0.082 58.5)
-
Step 950
950
#391F09
oklch(26.9% 0.052 57.8)
#B7640B 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) | #7D6E00 | 0.105 |
| Deuteranopia (no green cones) | #91810A | 0.095 |
| Tritanopia (no blue cones) | #C95155 | 0.094 |
| Achromatopsia (no color) | #797979 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B7640B
#B7640B
oklch(58.7% 0.137 58.1)
- #0086C0
#0086C0
oklch(58.8% 0.13 237.7)
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 #B7640B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Umber #B26400 ΔE 0.010
- Orange Brown #BE6400 ΔE 0.013
- Brown Orange #B96902 ΔE 0.014
- Copper #B66325 ΔE 0.014
- Orangey Brown #B16002 ΔE 0.016
- Tiger's Eye #BC6C25 ΔE 0.023
- Caramel #AF6F09 ΔE 0.029
- Raw Umber #A75E09 ΔE 0.035
Use #B7640B 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.