#7A381B
Closest named color: Rust Brown (#8B3103). oklch(42.3% 0.101 42.8), rgb(122, 56, 27).
Aa
White text reads best on this color (8.71:1).
About this color
#7A381B is a dark, moderately saturated brown. In OKLCH its lightness is 42%, its chroma 0.101 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Brown (#8B3103), ΔE 0.035 away. White text reads best on it, at 8.71:1.
| Hue family | Browns |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.101) |
| Temperature | warm |
| Nearest name | Rust Brown (#8B3103) |
| Black text | 2.40:1 |
| White text | 8.71:1 |
Values
| HEX | #7A381B |
| RGB | rgb(122, 56, 27) |
| HSL | hsl(18, 64%, 29%) |
| OKLCH | oklch(42.3% 0.101 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 #7A381B | 8.71:1 | AAA | Lc -93.9 | Preferred for body text |
| Black text on #7A381B | 2.40:1 | Fails | Lc 14.6 | Not readable |
| #7A381B text on white | 8.71:1 | AAA | Lc 89.4 | Fine for body text |
| #7A381B text on black | 2.40:1 | Fails | Lc -12.8 | 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
#FAF4F1
oklch(97.1% 0.008 48.7)
-
Step 100
100
#F5E6E1
oklch(93.5% 0.018 39.4)
-
Step 200
200
#EDD3C8
oklch(88.5% 0.033 44.3)
-
Step 300
300
#E3B5A3
oklch(81% 0.059 42.4)
-
Step 400
400
#D38D71
oklch(70.7% 0.095 42.6)
-
Step 500
500
#C56F4B
oklch(63.1% 0.12 42.9)
-
Step 600
600
#B1552D
oklch(55.6% 0.131 42.7)
-
Step 700
700
#984520
oklch(49.2% 0.122 42.7)
-
Step 800
800 (this color)
#7A381B
oklch(42.3% 0.101 42.8)
-
Step 900
900
#64321D
oklch(37.8% 0.079 42.7)
-
Step 950
950
#3B1E12
oklch(27.2% 0.05 42.8)
#7A381B 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) | #4A4218 | 0.095 |
| Deuteranopia (no green cones) | #5A5119 | 0.088 |
| Tritanopia (no blue cones) | #862A32 | 0.052 |
| Achromatopsia (no color) | #4B4B4B | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7A381B
#7A381B
oklch(42.3% 0.101 42.8)
- #00576D
#00576D
oklch(42.4% 0.079 222.6)
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 #7A381B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Brown #8B3103 ΔE 0.035
- Red Brown #8B2E16 ΔE 0.037
- Chestnut #742802 ΔE 0.040
- Brown Red #922B05 ΔE 0.050
- Saddle Brown #8B4513 ΔE 0.051
- Purple Brown #673A3F ΔE 0.058
- Milk Chocolate #7F4E1E ΔE 0.058
- Brick Red #8F1402 ΔE 0.063
Use #7A381B 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.