#90391A
Closest named color: Rust Brown (#8B3103). oklch(46% 0.126 39), rgb(144, 57, 26).
Aa
White text reads best on this color (7.53:1).
About this color
#90391A is a medium-dark, moderately saturated red. In OKLCH its lightness is 46%, its chroma 0.126 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Brown (#8B3103), ΔE 0.023 away. White text reads best on it, at 7.53:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.126) |
| Temperature | warm |
| Nearest name | Rust Brown (#8B3103) |
| Black text | 2.78:1 |
| White text | 7.53:1 |
Values
| HEX | #90391A |
| RGB | rgb(144, 57, 26) |
| HSL | hsl(16, 69%, 33%) |
| OKLCH | oklch(46% 0.126 39) |
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 #90391A | 7.53:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #90391A | 2.78:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #90391A text on white | 7.53:1 | AAA | Lc 85.5 | Fine for body text |
| #90391A text on black | 2.78:1 | Fails | Lc -16.6 | Dividers and decoration only |
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 700.
-
Step 50
50
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F5E6E1
oklch(93.5% 0.018 39.4)
-
Step 200
200
#EED2C9
oklch(88.5% 0.034 38.6)
-
Step 300
300
#E4B4A4
oklch(80.9% 0.06 39.2)
-
Step 400
400
#D58B73
oklch(70.7% 0.097 38.7)
-
Step 500
500
#C86C4E
oklch(63% 0.125 38.7)
-
Step 600
600
#B35231
oklch(55.5% 0.135 39)
-
Step 700
700 (this color)
#90391A
oklch(46% 0.126 39)
-
Step 800
800
#7D371F
oklch(42.7% 0.104 39.1)
-
Step 900
900
#65301F
oklch(37.6% 0.081 38.4)
-
Step 950
950
#3B1D13
oklch(27% 0.05 39.1)
#90391A 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) | #524816 | 0.123 |
| Deuteranopia (no green cones) | #675C17 | 0.114 |
| Tritanopia (no blue cones) | #9F2433 | 0.057 |
| Achromatopsia (no color) | #545454 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #90391A
#90391A
oklch(46% 0.126 39)
- #006377
#006377
oklch(46.1% 0.083 218)
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 #90391A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Brown #8B3103 ΔE 0.023
- Brown Red #922B05 ΔE 0.025
- Red Brown #8B2E16 ΔE 0.026
- Saddle Brown #8B4513 ΔE 0.030
- Brick #A03623 ΔE 0.034
- Russet #A13905 ΔE 0.035
- Burnt Red #9F2305 ΔE 0.041
- Burnt Umber #A0450E ΔE 0.046
Use #90391A 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.