#75180B
Closest named color: Reddy Brown (#6E1005). oklch(37% 0.129 31.3), rgb(117, 24, 11).
Aa
White text reads best on this color (11.10:1).
About this color
#75180B is a dark, moderately saturated red. In OKLCH its lightness is 37%, its chroma 0.129 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.021 away. White text reads best on it, at 11.10:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.129) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.89:1 |
| White text | 11.10:1 |
Values
| HEX | #75180B |
| RGB | rgb(117, 24, 11) |
| HSL | hsl(7, 83%, 25%) |
| OKLCH | oklch(37% 0.129 31.3) |
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 #75180B | 11.10:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #75180B | 1.89:1 | Fails | Lc 9.6 | Not readable |
| #75180B text on white | 11.10:1 | AAA | Lc 94.4 | Preferred for body text |
| #75180B text on black | 1.89:1 | Fails | Lc -8.2 | 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 900.
-
Step 50
50
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FCE4DF
oklch(93.7% 0.027 31.7)
-
Step 200
200
#FBCDC4
oklch(88.6% 0.054 31)
-
Step 300
300
#F9A99A
oklch(80.9% 0.098 31)
-
Step 400
400
#F17762
oklch(70.7% 0.154 31.3)
-
Step 500
500
#E94B34
oklch(63.2% 0.198 31.2)
-
Step 600
600
#D41E00
oklch(55.6% 0.215 31.2)
-
Step 700
700
#B31800
oklch(49% 0.189 31.3)
-
Step 800
800
#941200
oklch(42.6% 0.165 31.3)
-
Step 900
900 (this color)
#75180B
oklch(37% 0.129 31.3)
-
Step 950
950
#46120A
oklch(26.9% 0.081 31.5)
#75180B 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) | #352F08 | 0.138 |
| Deuteranopia (no green cones) | #4C4305 | 0.125 |
| Tritanopia (no blue cones) | #820016 | 0.035 |
| Achromatopsia (no color) | #3C3C3C | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #75180B
#75180B
oklch(37% 0.129 31.3)
- #004853
#004853
oklch(36.9% 0.064 212)
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 #75180B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.021
- Blood #770001 ΔE 0.022
- Maroon #800000 ΔE 0.027
- Chestnut #742802 ΔE 0.031
- Wine Red #7B0323 ΔE 0.039
- Dark Red #8B0000 ΔE 0.046
- Claret #680018 ΔE 0.051
- Bordeaux #7B002C ΔE 0.052
Use #75180B 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.