#66051D
Closest named color: Claret (#680018). oklch(32.7% 0.126 16.3), rgb(102, 5, 29).
Aa
White text reads best on this color (13.08:1).
About this color
#66051D is a dark, moderately saturated red. In OKLCH its lightness is 33%, its chroma 0.126 and its hue 16°. Its hue sits on the warm side of the wheel. The nearest named color is Claret (#680018), ΔE 0.008 away. White text reads best on it, at 13.08:1.
| Hue family | Reds |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.126) |
| Temperature | warm |
| Nearest name | Claret (#680018) |
| Black text | 1.60:1 |
| White text | 13.08:1 |
Values
| HEX | #66051D |
| RGB | rgb(102, 5, 29) |
| HSL | hsl(345, 91%, 21%) |
| OKLCH | oklch(32.7% 0.126 16.3) |
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 #66051D | 13.08:1 | AAA | Lc -101.2 | Preferred for body text |
| Black text on #66051D | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #66051D text on white | 13.08:1 | AAA | Lc 97.7 | Preferred for body text |
| #66051D text on black | 1.60:1 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FCE3E3
oklch(93.6% 0.028 17.7)
-
Step 200
200
#FACCCD
oklch(88.5% 0.052 16.7)
-
Step 300
300
#F8A8AB
oklch(81% 0.095 16.9)
-
Step 400
400
#EF757F
oklch(70.7% 0.15 16.6)
-
Step 500
500
#E64860
oklch(63.1% 0.194 16.1)
-
Step 600
600
#D11B46
oklch(55.5% 0.21 16.4)
-
Step 700
700
#B50238
oklch(49.1% 0.196 16.3)
-
Step 800
800
#930F2F
oklch(42.8% 0.162 16.1)
-
Step 900
900 (this color)
#66051D
oklch(32.7% 0.126 16.3)
-
Step 950
950
#461118
oklch(27.1% 0.081 16.8)
#66051D 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) | #26241D | 0.141 |
| Deuteranopia (no green cones) | #3D371A | 0.128 |
| Tritanopia (no blue cones) | #710011 | 0.028 |
| Achromatopsia (no color) | #313131 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66051D
#66051D
oklch(32.7% 0.126 16.3)
- #003D3E
#003D3E
oklch(32.6% 0.056 196.6)
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 #66051D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Claret #680018 ΔE 0.008
- Burgundy #610023 ΔE 0.019
- Reddy Brown #6E1005 ΔE 0.039
- Blood #770001 ΔE 0.047
- Wine Red #7B0323 ΔE 0.049
- Bordeaux #7B002C ΔE 0.052
- Merlot #730039 ΔE 0.053
- Maroon #800000 ΔE 0.065
Use #66051D 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.