#902819
Closest named color: Red Brown (#8B2E16). oklch(43.8% 0.142 31.3), rgb(144, 40, 25).
Aa
White text reads best on this color (8.38:1).
About this color
#902819 is a dark, vivid red. In OKLCH its lightness is 44%, its chroma 0.142 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Red Brown (#8B2E16), ΔE 0.014 away. White text reads best on it, at 8.38:1.
| Hue family | Reds |
| Lightness | dark (44%) |
| Chroma | vivid (0.142) |
| Temperature | warm |
| Nearest name | Red Brown (#8B2E16) |
| Black text | 2.50:1 |
| White text | 8.38:1 |
Values
| HEX | #902819 |
| RGB | rgb(144, 40, 25) |
| HSL | hsl(8, 70%, 33%) |
| OKLCH | oklch(43.8% 0.142 31.3) |
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 #902819 | 8.38:1 | AAA | Lc -92.5 | Preferred for body text |
| Black text on #902819 | 2.50:1 | Fails | Lc 16.2 | Dividers and decoration only |
| #902819 text on white | 8.38:1 | AAA | Lc 87.8 | Fine for body text |
| #902819 text on black | 2.50:1 | Fails | Lc -14.3 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4E0
oklch(93.6% 0.025 29.9)
-
Step 200
200
#F6CFC7
oklch(88.6% 0.046 31.6)
-
Step 300
300
#F1ADA0
oklch(80.8% 0.083 31.1)
-
Step 400
400
#E77F6C
oklch(70.7% 0.132 31.5)
-
Step 500
500
#DD5944
oklch(63.1% 0.17 31.3)
-
Step 600
600
#C83823
oklch(55.5% 0.184 31.4)
-
Step 700
700
#AD2816
oklch(49.1% 0.172 31.1)
-
Step 800
800 (this color)
#902819
oklch(43.8% 0.142 31.3)
-
Step 900
900
#712419
oklch(37.7% 0.111 30.9)
-
Step 950
950
#42160F
oklch(26.8% 0.07 31.2)
#902819 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) | #473F16 | 0.149 |
| Deuteranopia (no green cones) | #615614 | 0.136 |
| Tritanopia (no blue cones) | #9F0026 | 0.048 |
| Achromatopsia (no color) | #4D4D4D | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #902819
#902819
oklch(43.8% 0.142 31.3)
- #005D6A
#005D6A
oklch(43.9% 0.076 211.2)
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 #902819, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Brown #8B2E16 ΔE 0.014
- Brown Red #922B05 ΔE 0.016
- Rust Brown #8B3103 ΔE 0.026
- Brick Red #8F1402 ΔE 0.027
- Auburn #9B2226 ΔE 0.028
- Burnt Red #9F2305 ΔE 0.031
- Deep Red #9A0200 ΔE 0.035
- Blood Red #980002 ΔE 0.036
Use #902819 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.