#901C13
Closest named color: Brick Red (#8F1402). oklch(42.6% 0.153 29.5), rgb(144, 28, 19).
Aa
White text reads best on this color (8.89:1).
About this color
#901C13 is a dark, vivid red. In OKLCH its lightness is 43%, its chroma 0.153 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Brick Red (#8F1402), ΔE 0.012 away. White text reads best on it, at 8.89:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | vivid (0.153) |
| Temperature | warm |
| Nearest name | Brick Red (#8F1402) |
| Black text | 2.36:1 |
| White text | 8.89:1 |
Values
| HEX | #901C13 |
| RGB | rgb(144, 28, 19) |
| HSL | hsl(4, 77%, 32%) |
| OKLCH | oklch(42.6% 0.153 29.5) |
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 #901C13 | 8.89:1 | AAA | Lc -93.5 | Preferred for body text |
| Black text on #901C13 | 2.36:1 | Fails | Lc 15.1 | Dividers and decoration only |
| #901C13 text on white | 8.89:1 | AAA | Lc 88.9 | Fine for body text |
| #901C13 text on black | 2.36:1 | Fails | Lc -13.3 | 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
#FBE4E0
oklch(93.6% 0.026 29.4)
-
Step 200
200
#F8CEC6
oklch(88.5% 0.049 30.7)
-
Step 300
300
#F5AB9F
oklch(80.9% 0.09 29.4)
-
Step 400
400
#EC7B6B
oklch(70.7% 0.142 29.4)
-
Step 500
500
#E25242
oklch(63% 0.182 29.4)
-
Step 600
600
#CE2D21
oklch(55.6% 0.199 29.3)
-
Step 700
700
#B21C13
oklch(49.1% 0.185 29.3)
-
Step 800
800 (this color)
#901C13
oklch(42.6% 0.153 29.5)
-
Step 900
900
#742017
oklch(37.8% 0.119 29.7)
-
Step 950
950
#44140F
oklch(26.9% 0.075 28.9)
#901C13 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) | #413A10 | 0.165 |
| Deuteranopia (no green cones) | #5E530C | 0.148 |
| Tritanopia (no blue cones) | #9F001C | 0.035 |
| Achromatopsia (no color) | #4A4A4A | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #901C13
#901C13
oklch(42.6% 0.153 29.5)
- #005965
#005965
oklch(42.5% 0.074 210.5)
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 #901C13, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick Red #8F1402 ΔE 0.012
- Blood Red #980002 ΔE 0.022
- Deep Red #9A0200 ΔE 0.024
- Red Brown #8B2E16 ΔE 0.027
- Brown Red #922B05 ΔE 0.028
- Dark Red #8B0000 ΔE 0.029
- Carmine #9D0216 ΔE 0.030
- Auburn #9B2226 ΔE 0.031
Use #901C13 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.