#660F28
Closest named color: Burgundy (#610023). oklch(33.7% 0.119 10.6), rgb(102, 15, 40).
Aa
White text reads best on this color (12.62:1).
About this color
#660F28 is a dark, moderately saturated red. In OKLCH its lightness is 34%, its chroma 0.119 and its hue 11°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.023 away. White text reads best on it, at 12.62:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.119) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.66:1 |
| White text | 12.62:1 |
Values
| HEX | #660F28 |
| RGB | rgb(102, 15, 40) |
| HSL | hsl(343, 74%, 23%) |
| OKLCH | oklch(33.7% 0.119 10.6) |
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 #660F28 | 12.62:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #660F28 | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #660F28 text on white | 12.62:1 | AAA | Lc 97.3 | Preferred for body text |
| #660F28 text on black | 1.66:1 | 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
#FDF2F3
oklch(97% 0.012 11)
-
Step 100
100
#FBE3E6
oklch(93.6% 0.027 9)
-
Step 200
200
#F8CCD1
oklch(88.4% 0.05 10.5)
-
Step 300
300
#F4A9B3
oklch(80.9% 0.089 10.5)
-
Step 400
400
#EB778B
oklch(70.7% 0.144 10.6)
-
Step 500
500
#E14D6F
oklch(63.1% 0.184 10.4)
-
Step 600
600
#CC2757
oklch(55.7% 0.199 10.6)
-
Step 700
700
#B01547
oklch(49.1% 0.185 10.6)
-
Step 800
800
#8F173A
oklch(42.7% 0.154 10.8)
-
Step 900
900 (this color)
#660F28
oklch(33.7% 0.119 10.6)
-
Step 950
950
#44131D
oklch(27.1% 0.076 11.4)
#660F28 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) | #282828 | 0.134 |
| Deuteranopia (no green cones) | #3E3926 | 0.121 |
| Tritanopia (no blue cones) | #70001A | 0.028 |
| Achromatopsia (no color) | #333333 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #660F28
#660F28
oklch(33.7% 0.119 10.6)
- #00403E
#00403E
oklch(33.6% 0.058 191.3)
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 #660F28, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.023
- Claret #680018 ΔE 0.023
- Merlot #730039 ΔE 0.042
- Bordeaux #7B002C ΔE 0.046
- Wine Red #7B0323 ΔE 0.046
- Reddy Brown #6E1005 ΔE 0.046
- Blood #770001 ΔE 0.054
- Wine #80013F ΔE 0.067
Use #660F28 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.