#9C2129
Closest named color: Auburn (#9B2226). oklch(45.6% 0.158 23.2), rgb(156, 33, 41).
Aa
White text reads best on this color (7.88:1).
About this color
#9C2129 is a medium-dark, vivid red. In OKLCH its lightness is 46%, its chroma 0.158 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.004 away. White text reads best on it, at 7.88:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.158) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.66:1 |
| White text | 7.88:1 |
Values
| HEX | #9C2129 |
| RGB | rgb(156, 33, 41) |
| HSL | hsl(356, 65%, 37%) |
| OKLCH | oklch(45.6% 0.158 23.2) |
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 #9C2129 | 7.88:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #9C2129 | 2.66:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #9C2129 text on white | 7.88:1 | AAA | Lc 85.9 | Fine for body text |
| #9C2129 text on black | 2.66:1 | Fails | Lc -16.1 | 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 800.
-
Step 50
50
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE3E1
oklch(93.6% 0.028 23.2)
-
Step 200
200
#FACDC9
oklch(88.6% 0.051 24.1)
-
Step 300
300
#F7A9A4
oklch(80.9% 0.093 23.4)
-
Step 400
400
#EF7774
oklch(70.7% 0.149 23)
-
Step 500
500
#E54C50
oklch(63% 0.189 23)
-
Step 600
600
#D12334
oklch(55.7% 0.206 23.1)
-
Step 700
700
#B40F26
oklch(49.1% 0.191 23.2)
-
Step 800
800 (this color)
#9C2129
oklch(45.6% 0.158 23.2)
-
Step 900
900
#751C20
oklch(37.6% 0.123 23.1)
-
Step 950
950
#451213
oklch(26.9% 0.078 23)
#9C2129 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) | #464128 | 0.174 |
| Deuteranopia (no green cones) | #655B25 | 0.158 |
| Tritanopia (no blue cones) | #AC0025 | 0.034 |
| Achromatopsia (no color) | #515151 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #9C2129
#9C2129
oklch(45.6% 0.158 23.2)
- #00636A
#00636A
oklch(45.5% 0.078 203.3)
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 #9C2129, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.004
- Brown #A52A2A ΔE 0.026
- Carmine #9D0216 ΔE 0.026
- Burnt Red #9F2305 ΔE 0.030
- Deep Red #9A0200 ΔE 0.035
- Blood Red #980002 ΔE 0.037
- Rouge #AB1239 ΔE 0.039
- Brick #A03623 ΔE 0.040
Use #9C2129 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.