#B1641B
Closest named color: Umber (#B26400). oklch(58% 0.128 58), rgb(177, 100, 27).
Aa
Black text reads best on this color (4.70:1).
About this color
#B1641B is a medium-dark, moderately saturated brown. In OKLCH its lightness is 58%, its chroma 0.128 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 4.70:1.
| Hue family | Browns |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.128) |
| Temperature | warm |
| Nearest name | Umber (#B26400) |
| Black text | 4.70:1 |
| White text | 4.46:1 |
Values
| HEX | #B1641B |
| RGB | rgb(177, 100, 27) |
| HSL | hsl(29, 74%, 40%) |
| OKLCH | oklch(58% 0.128 58) |
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 #B1641B | 4.46:1 | AA large text | Lc -76.0 | Fine for body text |
| Black text on #B1641B | 4.70:1 | AA | Lc 33.5 | Non-text elements, placeholder text |
| #B1641B text on white | 4.46:1 | AA large text | Lc 70.6 | Content text, not long reading |
| #B1641B text on black | 4.70:1 | AA | Lc -31.1 | 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
#F3E7DF
oklch(93.5% 0.017 56.2)
-
Step 200
200
#EAD4C5
oklch(88.4% 0.032 56.6)
-
Step 300
300
#DEB89D
oklch(80.9% 0.057 57.2)
-
Step 400
400
#CC9266
oklch(70.7% 0.092 57.8)
-
Step 500
500
#BE763A
oklch(63.2% 0.117 58)
-
Step 600
600 (this color)
#B1641B
oklch(58% 0.128 58)
-
Step 700
700
#914C00
oklch(49.1% 0.118 57.5)
-
Step 800
800
#763F07
oklch(42.8% 0.098 58)
-
Step 900
900
#5F3612
oklch(37.7% 0.076 58.1)
-
Step 950
950
#38200C
oklch(27% 0.049 58.3)
#B1641B 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) | #7B6D0C | 0.099 |
| Deuteranopia (no green cones) | #8E7E1B | 0.087 |
| Tritanopia (no blue cones) | #C25356 | 0.087 |
| Achromatopsia (no color) | #777777 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1641B
#B1641B
oklch(58% 0.128 58)
- #0383BC
#0383BC
oklch(57.9% 0.128 237.9)
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 #B1641B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Umber #B26400 ΔE 0.010
- Orangey Brown #B16002 ΔE 0.011
- Copper #B66325 ΔE 0.012
- Brown Orange #B96902 ΔE 0.023
- Orange Brown #BE6400 ΔE 0.024
- Raw Umber #A75E09 ΔE 0.026
- Tiger's Eye #BC6C25 ΔE 0.030
- Caramel #AF6F09 ΔE 0.030
Use #B1641B 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.