#9D1729
Closest named color: Auburn (#9B2226). oklch(45.1% 0.166 21.2), rgb(157, 23, 41).
Aa
White text reads best on this color (8.11:1).
About this color
#9D1729 is a medium-dark, vivid red. In OKLCH its lightness is 45%, its chroma 0.166 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Auburn (#9B2226), ΔE 0.014 away. White text reads best on it, at 8.11:1.
| Hue family | Reds |
| Lightness | medium-dark (45%) |
| Chroma | vivid (0.166) |
| Temperature | warm |
| Nearest name | Auburn (#9B2226) |
| Black text | 2.58:1 |
| White text | 8.11:1 |
Values
| HEX | #9D1729 |
| RGB | rgb(157, 23, 41) |
| HSL | hsl(352, 74%, 35%) |
| OKLCH | oklch(45.1% 0.166 21.2) |
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 #9D1729 | 8.11:1 | AAA | Lc -91.1 | Preferred for body text |
| Black text on #9D1729 | 2.58:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #9D1729 text on white | 8.11:1 | AAA | Lc 86.4 | Fine for body text |
| #9D1729 text on black | 2.58:1 | Fails | Lc -15.7 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FCE3E2
oklch(93.6% 0.028 20.4)
-
Step 200
200
#FBCCCA
oklch(88.5% 0.054 21.1)
-
Step 300
300
#F9A7A5
oklch(80.8% 0.098 21)
-
Step 400
400
#F27475
oklch(70.7% 0.155 21.4)
-
Step 500
500
#E94651
oklch(63.1% 0.199 21.4)
-
Step 600
600
#D41336
oklch(55.5% 0.216 21.1)
-
Step 700
700
#B6002A
oklch(49.1% 0.197 21.1)
-
Step 800
800 (this color)
#9D1729
oklch(45.1% 0.166 21.2)
-
Step 900
900
#781721
oklch(37.7% 0.131 21.1)
-
Step 950
950
#471014
oklch(27% 0.083 20.8)
#9D1729 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) | #433E28 | 0.184 |
| Deuteranopia (no green cones) | #645A24 | 0.168 |
| Tritanopia (no blue cones) | #AD0020 | 0.033 |
| Achromatopsia (no color) | #505050 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #9D1729
#9D1729
oklch(45.1% 0.166 21.2)
- #006267
#006267
oklch(45.1% 0.077 200.9)
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 #9D1729, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Auburn #9B2226 ΔE 0.014
- Carmine #9D0216 ΔE 0.020
- Cranberry #9E003A ΔE 0.032
- Deep Red #9A0200 ΔE 0.032
- Brown #A52A2A ΔE 0.033
- Blood Red #980002 ΔE 0.034
- Rouge #AB1239 ΔE 0.035
- Burnt Red #9F2305 ΔE 0.036
Use #9D1729 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.