#91390B
Closest named color: Rust Brown (#8B3103). oklch(46.1% 0.13 42.8), rgb(145, 57, 11).
Aa
White text reads best on this color (7.51:1).
About this color
#91390B is a medium-dark, moderately saturated brown. In OKLCH its lightness is 46%, its chroma 0.130 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Brown (#8B3103), ΔE 0.022 away. White text reads best on it, at 7.51:1.
| Hue family | Browns |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.130) |
| Temperature | warm |
| Nearest name | Rust Brown (#8B3103) |
| Black text | 2.79:1 |
| White text | 7.51:1 |
Values
| HEX | #91390B |
| RGB | rgb(145, 57, 11) |
| HSL | hsl(21, 86%, 31%) |
| OKLCH | oklch(46.1% 0.13 42.8) |
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 #91390B | 7.51:1 | AAA | Lc -90.2 | Preferred for body text |
| Black text on #91390B | 2.79:1 | Fails | Lc 18.7 | Dividers and decoration only |
| #91390B text on white | 7.51:1 | AAA | Lc 85.4 | Fine for body text |
| #91390B text on black | 2.79:1 | Fails | Lc -16.7 | 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
#F5E6E0
oklch(93.5% 0.018 43.2)
-
Step 200
200
#EED2C7
oklch(88.4% 0.035 42.7)
-
Step 300
300
#E5B4A1
oklch(80.9% 0.063 42.2)
-
Step 400
400
#D68B6D
oklch(70.7% 0.101 42.5)
-
Step 500
500
#C96C46
oklch(63% 0.129 42.3)
-
Step 600
600
#B45225
oklch(55.5% 0.14 43)
-
Step 700
700 (this color)
#91390B
oklch(46.1% 0.13 42.8)
-
Step 800
800
#7E3717
oklch(42.7% 0.108 42.7)
-
Step 900
900
#66301A
oklch(37.7% 0.085 41.9)
-
Step 950
950
#3C1D10
oklch(27.1% 0.053 42.9)
#91390B 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) | #534801 | 0.124 |
| Deuteranopia (no green cones) | #685C05 | 0.113 |
| Tritanopia (no blue cones) | #A02231 | 0.065 |
| Achromatopsia (no color) | #545454 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #91390B
#91390B
oklch(46.1% 0.13 42.8)
- #00627B
#00627B
oklch(46.1% 0.086 223.1)
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 #91390B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Brown #8B3103 ΔE 0.022
- Brown Red #922B05 ΔE 0.026
- Saddle Brown #8B4513 ΔE 0.027
- Red Brown #8B2E16 ΔE 0.030
- Russet #A13905 ΔE 0.032
- Brick #A03623 ΔE 0.037
- Burnt Red #9F2305 ΔE 0.041
- Burnt Umber #A0450E ΔE 0.043
Use #91390B 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.