#990C0A
Closest named color: Deep Red (#9A0200). oklch(43.4% 0.171 28.7), rgb(153, 12, 10).
Aa
White text reads best on this color (8.70:1).
About this color
#990C0A is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.171 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Red (#9A0200), ΔE 0.006 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 | Deep Red (#9A0200) |
| Black text | 2.41:1 |
| White text | 8.70:1 |
Values
| HEX | #990C0A |
| RGB | rgb(153, 12, 10) |
| HSL | hsl(1, 88%, 32%) |
| OKLCH | oklch(43.4% 0.171 28.7) |
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 #990C0A | 8.70:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #990C0A | 2.41:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #990C0A text on white | 8.70:1 | AAA | Lc 87.7 | Fine for body text |
| #990C0A 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FDE3DF
oklch(93.6% 0.029 28.1)
-
Step 200
200
#FCCCC5
oklch(88.5% 0.056 27.9)
-
Step 300
300
#FBA89C
oklch(81% 0.1 28.5)
-
Step 400
400
#F47465
oklch(70.7% 0.16 28.6)
-
Step 500
500
#EB4639
oklch(63.1% 0.204 28.7)
-
Step 600
600
#D7100F
oklch(55.6% 0.222 28.7)
-
Step 700
700
#B80005
oklch(49.2% 0.201 28.7)
-
Step 800
800 (this color)
#990C0A
oklch(43.4% 0.171 28.7)
-
Step 900
900
#791711
oklch(37.7% 0.133 28.8)
-
Step 950
950
#47100C
oklch(26.9% 0.084 28.3)
#990C0A 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) | #403806 | 0.188 |
| Deuteranopia (no green cones) | #615500 | 0.167 |
| Tritanopia (no blue cones) | #A9000F | 0.034 |
| Achromatopsia (no color) | #4B4B4B | 0.172 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #990C0A
#990C0A
oklch(43.4% 0.171 28.7)
- #005C67
#005C67
oklch(43.5% 0.075 208.9)
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 #990C0A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Red #9A0200 ΔE 0.006
- Blood Red #980002 ΔE 0.008
- Carmine #9D0216 ΔE 0.013
- Brick Red #8F1402 ΔE 0.022
- Auburn #9B2226 ΔE 0.028
- Burnt Red #9F2305 ΔE 0.030
- Dark Red #8B0000 ΔE 0.035
- Brown Red #922B05 ΔE 0.037
Use #990C0A 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.