#75311B
Closest named color: Chestnut (#742802). oklch(40.3% 0.102 38.2), rgb(117, 49, 27).
Aa
White text reads best on this color (9.49:1).
About this color
#75311B is a dark, moderately saturated red. In OKLCH its lightness is 40%, its chroma 0.102 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.023 away. White text reads best on it, at 9.49:1.
| Hue family | Reds |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.102) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 2.21:1 |
| White text | 9.49:1 |
Values
| HEX | #75311B |
| RGB | rgb(117, 49, 27) |
| HSL | hsl(15, 63%, 28%) |
| OKLCH | oklch(40.3% 0.102 38.2) |
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 #75311B | 9.49:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #75311B | 2.21:1 | Fails | Lc 12.6 | Not readable |
| #75311B text on white | 9.49:1 | AAA | Lc 91.4 | Preferred for body text |
| #75311B text on black | 2.21:1 | Fails | Lc -11.0 | 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
#FBF4F2
oklch(97.2% 0.008 36.6)
-
Step 100
100
#F5E6E2
oklch(93.6% 0.017 35.3)
-
Step 200
200
#EED2CA
oklch(88.5% 0.033 36.5)
-
Step 300
300
#E4B4A5
oklch(80.9% 0.06 38.1)
-
Step 400
400
#D48C75
oklch(70.8% 0.095 38.5)
-
Step 500
500
#C76D51
oklch(63.1% 0.122 38)
-
Step 600
600
#B25335
oklch(55.6% 0.132 38)
-
Step 700
700
#994327
oklch(49.1% 0.123 38.3)
-
Step 800
800 (this color)
#75311B
oklch(40.3% 0.102 38.2)
-
Step 900
900
#643120
oklch(37.7% 0.079 39)
-
Step 950
950
#3B1D14
oklch(27% 0.05 37.5)
#75311B 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) | #443C18 | 0.099 |
| Deuteranopia (no green cones) | #544B19 | 0.091 |
| Tritanopia (no blue cones) | #81222C | 0.047 |
| Achromatopsia (no color) | #464646 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #75311B
#75311B
oklch(40.3% 0.102 38.2)
- #005263
#005263
oklch(40.5% 0.073 218)
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 #75311B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.023
- Red Brown #8B2E16 ΔE 0.045
- Rust Brown #8B3103 ΔE 0.047
- Purple Brown #673A3F ΔE 0.052
- Brown Red #922B05 ΔE 0.059
- Brick Red #8F1402 ΔE 0.061
- Maroon #800000 ΔE 0.062
- Reddy Brown #6E1005 ΔE 0.063
Use #75311B 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.