#971721
Closest named color: Carmine (#9D0216). oklch(43.8% 0.161 23.9), rgb(151, 23, 33).
Aa
White text reads best on this color (8.53:1).
About this color
#971721 is a dark, vivid red. In OKLCH its lightness is 44%, its chroma 0.161 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Carmine (#9D0216), ΔE 0.016 away. White text reads best on it, at 8.53:1.
| Hue family | Reds |
| Lightness | dark (44%) |
| Chroma | vivid (0.161) |
| Temperature | warm |
| Nearest name | Carmine (#9D0216) |
| Black text | 2.46:1 |
| White text | 8.53:1 |
Values
| HEX | #971721 |
| RGB | rgb(151, 23, 33) |
| HSL | hsl(355, 74%, 34%) |
| OKLCH | oklch(43.8% 0.161 23.9) |
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 #971721 | 8.53:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #971721 | 2.46:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #971721 text on white | 8.53:1 | AAA | Lc 87.7 | Fine for body text |
| #971721 text on black | 2.46:1 | Fails | Lc -14.5 | Not readable |
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
#FACCC8
oklch(88.4% 0.053 24)
-
Step 300
300
#F8A9A3
oklch(81% 0.094 24.2)
-
Step 400
400
#F07672
oklch(70.7% 0.151 23.6)
-
Step 500
500
#E74A4C
oklch(63.1% 0.194 23.9)
-
Step 600
600
#D21F2F
oklch(55.6% 0.209 24)
-
Step 700
700
#B50822
oklch(49% 0.195 23.9)
-
Step 800
800 (this color)
#971721
oklch(43.8% 0.161 23.9)
-
Step 900
900
#761B1E
oklch(37.7% 0.125 24)
-
Step 950
950
#461212
oklch(27.1% 0.08 24.2)
#971721 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) | #413B20 | 0.177 |
| Deuteranopia (no green cones) | #60561C | 0.161 |
| Tritanopia (no blue cones) | #A7001D | 0.032 |
| Achromatopsia (no color) | #4C4C4C | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #971721
#971721
oklch(43.8% 0.161 23.9)
- #005E65
#005E65
oklch(43.9% 0.075 203.7)
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 #971721, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carmine #9D0216 ΔE 0.016
- Auburn #9B2226 ΔE 0.017
- Blood Red #980002 ΔE 0.023
- Deep Red #9A0200 ΔE 0.023
- Brick Red #8F1402 ΔE 0.029
- Burnt Red #9F2305 ΔE 0.035
- Brown Red #922B05 ΔE 0.040
- Dark Red #8B0000 ΔE 0.041
Use #971721 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.