#9B231F
Closest named color: Auburn (#9B2226). oklch(45.4% 0.157 27.5), rgb(155, 35, 31).
Aa
White text reads best on this color (7.91:1).
About this color
#9B231F is a medium-dark, vivid red. In OKLCH its lightness is 45%, its chroma 0.157 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.008 away. White text reads best on it, at 7.91:1.
| Hue family | Reds |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.157) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.65:1 |
| White text | 7.91:1 |
Values
| HEX | #9B231F |
| RGB | rgb(155, 35, 31) |
| HSL | hsl(2, 67%, 36%) |
| OKLCH | oklch(45.4% 0.157 27.5) |
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 #9B231F | 7.91:1 | AAA | Lc -90.9 | Preferred for body text |
| Black text on #9B231F | 2.65:1 | Fails | Lc 17.9 | Dividers and decoration only |
| #9B231F text on white | 7.91:1 | AAA | Lc 86.1 | Fine for body text |
| #9B231F text on black | 2.65:1 | Fails | Lc -16.0 | 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 800.
-
Step 50
50
#FEF3F1
oklch(97.2% 0.012 29.9)
-
Step 100
100
#FBE4E0
oklch(93.6% 0.026 29.4)
-
Step 200
200
#F9CDC7
oklch(88.5% 0.051 27.2)
-
Step 300
300
#F6AAA0
oklch(80.8% 0.091 27.6)
-
Step 400
400
#EE796D
oklch(70.7% 0.146 27.4)
-
Step 500
500
#E54F45
oklch(63.2% 0.188 27.6)
-
Step 600
600
#D02725
oklch(55.6% 0.204 27.5)
-
Step 700
700
#B41518
oklch(49.2% 0.19 27.4)
-
Step 800
800 (this color)
#9B231F
oklch(45.4% 0.157 27.5)
-
Step 900
900
#751E19
oklch(37.7% 0.122 27.8)
-
Step 950
950
#451310
oklch(27% 0.078 27)
#9B231F 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) | #48411D | 0.169 |
| Deuteranopia (no green cones) | #665B1A | 0.154 |
| Tritanopia (no blue cones) | #AB0024 | 0.038 |
| Achromatopsia (no color) | #515151 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #9B231F
#9B231F
oklch(45.4% 0.157 27.5)
- #00626D
#00626D
oklch(45.4% 0.078 208.1)
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 #9B231F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.008
- Burnt Red #9F2305 ΔE 0.019
- Carmine #9D0216 ΔE 0.026
- Brown #A52A2A ΔE 0.027
- Brown Red #922B05 ΔE 0.030
- Deep Red #9A0200 ΔE 0.030
- Blood Red #980002 ΔE 0.033
- Brick #A03623 ΔE 0.035
Use #9B231F 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.