#99231F
Closest named color: Auburn (#9B2226). oklch(45.1% 0.155 27.5), rgb(153, 35, 31).
Aa
White text reads best on this color (8.03:1).
About this color
#99231F is a medium-dark, vivid red. In OKLCH its lightness is 45%, its chroma 0.155 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.009 away. White text reads best on it, at 8.03:1.
| Hue family | Reds |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.155) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.61:1 |
| White text | 8.03:1 |
Values
| HEX | #99231F |
| RGB | rgb(153, 35, 31) |
| HSL | hsl(2, 66%, 36%) |
| OKLCH | oklch(45.1% 0.155 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 #99231F | 8.03:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #99231F | 2.61:1 | Fails | Lc 17.5 | Dividers and decoration only |
| #99231F text on white | 8.03:1 | AAA | Lc 86.5 | Fine for body text |
| #99231F text on black | 2.61:1 | Fails | Lc -15.6 | 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
#F6AAA1
oklch(80.9% 0.091 26.8)
-
Step 400
400
#ED796D
oklch(70.6% 0.145 27.4)
-
Step 500
500
#E45046
oklch(63.2% 0.186 27.5)
-
Step 600
600
#CF2A27
oklch(55.6% 0.201 27.5)
-
Step 700
700
#B31819
oklch(49.2% 0.188 27.5)
-
Step 800
800 (this color)
#99231F
oklch(45.1% 0.155 27.5)
-
Step 900
900
#741E1A
oklch(37.6% 0.12 27.3)
-
Step 950
950
#451410
oklch(27.1% 0.076 27.9)
#99231F 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) | #47401D | 0.167 |
| Deuteranopia (no green cones) | #645A1A | 0.153 |
| Tritanopia (no blue cones) | #A90024 | 0.039 |
| Achromatopsia (no color) | #505050 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99231F
#99231F
oklch(45.1% 0.155 27.5)
- #00616B
#00616B
oklch(45% 0.077 207.1)
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 #99231F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.009
- Burnt Red #9F2305 ΔE 0.021
- Carmine #9D0216 ΔE 0.026
- Brown Red #922B05 ΔE 0.028
- Deep Red #9A0200 ΔE 0.029
- Brown #A52A2A ΔE 0.031
- Blood Red #980002 ΔE 0.031
- Red Brown #8B2E16 ΔE 0.033
Use #99231F 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.