#990A18
Closest named color: Carmine (#9D0216). oklch(43.4% 0.171 25.3), rgb(153, 10, 24).
Aa
White text reads best on this color (8.70:1).
About this color
#990A18 is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.171 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Carmine (#9D0216), ΔE 0.008 away. White text reads best on it, at 8.70:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | vivid (0.171) |
| Temperature | warm |
| Nearest name | Carmine (#9D0216) |
| Black text | 2.41:1 |
| White text | 8.70:1 |
Values
| HEX | #990A18 |
| RGB | rgb(153, 10, 24) |
| HSL | hsl(354, 88%, 32%) |
| OKLCH | oklch(43.4% 0.171 25.3) |
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 #990A18 | 8.70:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #990A18 | 2.41:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #990A18 text on white | 8.70:1 | AAA | Lc 87.7 | Fine for body text |
| #990A18 text on black | 2.41:1 | Fails | Lc -14.4 | 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
#FDE3E0
oklch(93.6% 0.029 25.6)
-
Step 200
200
#FCCCC7
oklch(88.6% 0.055 25.2)
-
Step 300
300
#FBA7A0
oklch(80.9% 0.101 24.8)
-
Step 400
400
#F4736C
oklch(70.7% 0.16 25.1)
-
Step 500
500
#EB4444
oklch(63% 0.204 25.2)
-
Step 600
600
#D70C24
oklch(55.7% 0.222 25.3)
-
Step 700
700
#B7001B
oklch(49.1% 0.199 25.2)
-
Step 800
800 (this color)
#990A18
oklch(43.4% 0.171 25.3)
-
Step 900
900
#791619
oklch(37.7% 0.133 25.1)
-
Step 950
950
#47100F
oklch(26.9% 0.084 25.7)
#990A18 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) | #3F3816 | 0.188 |
| Deuteranopia (no green cones) | #605510 | 0.169 |
| Tritanopia (no blue cones) | #A90013 | 0.033 |
| Achromatopsia (no color) | #4B4B4B | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #990A18
#990A18
oklch(43.4% 0.171 25.3)
- #005C64
#005C64
oklch(43.3% 0.074 205.1)
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 #990A18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Carmine #9D0216 ΔE 0.008
- Blood Red #980002 ΔE 0.014
- Deep Red #9A0200 ΔE 0.014
- Auburn #9B2226 ΔE 0.025
- Brick Red #8F1402 ΔE 0.027
- Burnt Red #9F2305 ΔE 0.036
- Dark Red #8B0000 ΔE 0.037
- Brown Red #922B05 ΔE 0.043
Use #990A18 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.