#B0230E
Closest named color: Rufous (#AE2012). oklch(49.2% 0.179 31.4), rgb(176, 35, 14).
Aa
White text reads best on this color (6.79:1).
About this color
#B0230E is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.179 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Rufous (#AE2012), ΔE 0.007 away. White text reads best on it, at 6.79:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.179) |
| Temperature | warm |
| Nearest name | Rufous (#AE2012) |
| Black text | 3.09:1 |
| White text | 6.79:1 |
Values
| HEX | #B0230E |
| RGB | rgb(176, 35, 14) |
| HSL | hsl(8, 85%, 37%) |
| OKLCH | oklch(49.2% 0.179 31.4) |
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 #B0230E | 6.79:1 | AA | Lc -86.9 | Fine for body text |
| Black text on #B0230E | 3.09:1 | AA large text | Lc 22.3 | Dividers and decoration only |
| #B0230E text on white | 6.79:1 | AA | Lc 81.8 | Fine for body text |
| #B0230E text on black | 3.09:1 | AA large text | Lc -20.1 | 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 700.
-
Step 50
50
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4E0
oklch(93.6% 0.025 29.9)
-
Step 200
200
#F7CEC6
oklch(88.4% 0.048 30.9)
-
Step 300
300
#F3AC9E
oklch(80.8% 0.087 31.5)
-
Step 400
400
#EA7D69
oklch(70.8% 0.139 31.6)
-
Step 500
500
#E05540
oklch(63% 0.178 31.1)
-
Step 600
600
#CC331C
oklch(55.7% 0.193 31.6)
-
Step 700
700 (this color)
#B0230E
oklch(49.2% 0.179 31.4)
-
Step 800
800
#8F2010
oklch(42.8% 0.149 31.4)
-
Step 900
900
#732216
oklch(37.8% 0.116 31.3)
-
Step 950
950
#43150E
oklch(26.8% 0.073 31)
#B0230E 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) | #514707 | 0.192 |
| Deuteranopia (no green cones) | #736600 | 0.173 |
| Tritanopia (no blue cones) | #C30021 | 0.044 |
| Achromatopsia (no color) | #5B5B5B | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B0230E
#B0230E
oklch(49.2% 0.179 31.4)
- #006E7D
#006E7D
oklch(49.4% 0.086 211.1)
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 #B0230E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rufous #AE2012 ΔE 0.007
- Rust Red #AA2704 ΔE 0.014
- Firebrick #B22222 ΔE 0.015
- Rusty Red #AF2F0D ΔE 0.016
- Brown #A52A2A ΔE 0.029
- Scarlet #BE0119 ΔE 0.034
- Brick #A03623 ΔE 0.036
- Burnt Red #9F2305 ΔE 0.036
Use #B0230E 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.