#640E1B
Closest named color: Claret (#680018). oklch(32.9% 0.118 19.3), rgb(100, 14, 27).
Aa
White text reads best on this color (12.95:1).
About this color
#640E1B is a dark, moderately saturated red. In OKLCH its lightness is 33%, its chroma 0.118 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Claret (#680018), ΔE 0.014 away. White text reads best on it, at 12.95:1.
| Hue family | Reds |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.118) |
| Temperature | warm |
| Nearest name | Claret (#680018) |
| Black text | 1.62:1 |
| White text | 12.95:1 |
Values
| HEX | #640E1B |
| RGB | rgb(100, 14, 27) |
| HSL | hsl(351, 75%, 22%) |
| OKLCH | oklch(32.9% 0.118 19.3) |
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 #640E1B | 12.95:1 | AAA | Lc -101.3 | Preferred for body text |
| Black text on #640E1B | 1.62:1 | Fails | Lc 0.0 | Not readable |
| #640E1B text on white | 12.95:1 | AAA | Lc 97.9 | Preferred for body text |
| #640E1B text on black | 1.62:1 | Fails | Lc 0.0 | 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 900.
-
Step 50
50
#FDF2F2
oklch(97% 0.012 17.4)
-
Step 100
100
#FBE4E3
oklch(93.7% 0.025 20.6)
-
Step 200
200
#F8CDCC
oklch(88.5% 0.049 19.7)
-
Step 300
300
#F4AAAA
oklch(80.9% 0.088 19.1)
-
Step 400
400
#EB797D
oklch(70.7% 0.141 19.1)
-
Step 500
500
#E1505C
oklch(63.1% 0.18 19.2)
-
Step 600
600
#CD2A42
oklch(55.6% 0.197 19.2)
-
Step 700
700
#B11A34
oklch(49.2% 0.182 19.3)
-
Step 800
800
#8F1A2B
oklch(42.6% 0.151 19.4)
-
Step 900
900 (this color)
#640E1B
oklch(32.9% 0.118 19.3)
-
Step 950
950
#441417
oklch(27.1% 0.074 19.9)
#640E1B 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) | #29261B | 0.129 |
| Deuteranopia (no green cones) | #3E3818 | 0.119 |
| Tritanopia (no blue cones) | #6F0014 | 0.025 |
| Achromatopsia (no color) | #313131 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #640E1B
#640E1B
oklch(32.9% 0.118 19.3)
- #003E40
#003E40
oklch(33% 0.056 198.4)
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 #640E1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Claret #680018 ΔE 0.014
- Burgundy #610023 ΔE 0.026
- Reddy Brown #6E1005 ΔE 0.033
- Blood #770001 ΔE 0.046
- Wine Red #7B0323 ΔE 0.052
- Bordeaux #7B002C ΔE 0.056
- Merlot #730039 ΔE 0.059
- Maroon #800000 ΔE 0.065
Use #640E1B 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.