#99180A
Closest named color: Deep Red (#9A0200). oklch(44% 0.165 30.5), rgb(153, 24, 10).
Aa
White text reads best on this color (8.43:1).
About this color
#99180A is a dark, vivid red. In OKLCH its lightness is 44%, its chroma 0.165 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Red (#9A0200), ΔE 0.014 away. White text reads best on it, at 8.43:1.
| Hue family | Reds |
| Lightness | dark (44%) |
| Chroma | vivid (0.165) |
| Temperature | warm |
| Nearest name | Deep Red (#9A0200) |
| Black text | 2.48:1 |
| White text | 8.43:1 |
Values
| HEX | #99180A |
| RGB | rgb(153, 24, 10) |
| HSL | hsl(6, 88%, 32%) |
| OKLCH | oklch(44% 0.165 30.5) |
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 #99180A | 8.43:1 | AAA | Lc -92.0 | Preferred for body text |
| Black text on #99180A | 2.48:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #99180A text on white | 8.43:1 | AAA | Lc 87.3 | Fine for body text |
| #99180A text on black | 2.48:1 | Fails | Lc -14.8 | 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
#FCE3DF
oklch(93.5% 0.028 28.5)
-
Step 200
200
#FBCDC4
oklch(88.6% 0.054 31)
-
Step 300
300
#F9A99B
oklch(80.9% 0.097 30.3)
-
Step 400
400
#F17764
oklch(70.7% 0.154 30.5)
-
Step 500
500
#E84B37
oklch(63.1% 0.197 30.5)
-
Step 600
600
#D41E0A
oklch(55.6% 0.215 30.4)
-
Step 700
700
#B51100
oklch(49.1% 0.194 30.5)
-
Step 800
800 (this color)
#99180A
oklch(44% 0.165 30.5)
-
Step 900
900
#771B10
oklch(37.7% 0.128 30.6)
-
Step 950
950
#46120B
oklch(26.9% 0.081 30.7)
#99180A 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) | #443B05 | 0.178 |
| Deuteranopia (no green cones) | #635700 | 0.160 |
| Tritanopia (no blue cones) | #A90017 | 0.035 |
| Achromatopsia (no color) | #4D4D4D | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99180A
#99180A
oklch(44% 0.165 30.5)
- #005E6A
#005E6A
oklch(44.1% 0.076 209.8)
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 #99180A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Red #9A0200 ΔE 0.014
- Blood Red #980002 ΔE 0.017
- Carmine #9D0216 ΔE 0.020
- Burnt Red #9F2305 ΔE 0.022
- Auburn #9B2226 ΔE 0.023
- Brick Red #8F1402 ΔE 0.024
- Brown Red #922B05 ΔE 0.028
- Red Brown #8B2E16 ΔE 0.036
Use #99180A 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.