#75100D
Closest named color: Blood (#770001). oklch(36.3% 0.135 28.3), rgb(117, 16, 13).
Aa
White text reads best on this color (11.43:1).
About this color
#75100D is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.135 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Blood (#770001), ΔE 0.013 away. White text reads best on it, at 11.43:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.135) |
| Temperature | warm |
| Nearest name | Blood (#770001) |
| Black text | 1.83:1 |
| White text | 11.43:1 |
Values
| HEX | #75100D |
| RGB | rgb(117, 16, 13) |
| HSL | hsl(2, 80%, 25%) |
| OKLCH | oklch(36.3% 0.135 28.3) |
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 #75100D | 11.43:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #75100D | 1.83:1 | Fails | Lc 9.1 | Not readable |
| #75100D text on white | 11.43:1 | AAA | Lc 94.8 | Preferred for body text |
| #75100D text on black | 1.83:1 | Fails | Lc -7.8 | 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 900.
-
Step 50
50
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FDE3DF
oklch(93.6% 0.029 28.1)
-
Step 200
200
#FCCCC5
oklch(88.5% 0.056 27.9)
-
Step 300
300
#FBA89C
oklch(81% 0.1 28.5)
-
Step 400
400
#F57365
oklch(70.7% 0.162 28.1)
-
Step 500
500
#EC4439
oklch(63% 0.206 28.3)
-
Step 600
600
#D8080F
oklch(55.6% 0.225 28.3)
-
Step 700
700
#B80008
oklch(49.2% 0.201 28.3)
-
Step 800
800
#970307
oklch(42.6% 0.173 28.3)
-
Step 900
900 (this color)
#75100D
oklch(36.3% 0.135 28.3)
-
Step 950
950
#48100C
oklch(27.1% 0.086 28.3)
#75100D 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) | #322C0B | 0.146 |
| Deuteranopia (no green cones) | #4A4107 | 0.132 |
| Tritanopia (no blue cones) | #820011 | 0.029 |
| Achromatopsia (no color) | #3A3A3A | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #75100D
#75100D
oklch(36.3% 0.135 28.3)
- #00474F
#00474F
oklch(36.4% 0.062 207.6)
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 #75100D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blood #770001 ΔE 0.013
- Reddy Brown #6E1005 ΔE 0.017
- Maroon #800000 ΔE 0.024
- Wine Red #7B0323 ΔE 0.032
- Chestnut #742802 ΔE 0.042
- Claret #680018 ΔE 0.042
- Bordeaux #7B002C ΔE 0.045
- Dark Red #8B0000 ΔE 0.047
Use #75100D 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.