#C66558
Closest named color: Indian Red (#CD5C5C). oklch(61.8% 0.126 29.1), rgb(198, 101, 88).
Aa
Black text reads best on this color (5.40:1).
About this color
#C66558 is a medium-dark, moderately saturated red. In OKLCH its lightness is 62%, its chroma 0.126 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Indian Red (#CD5C5C), ΔE 0.024 away. Black text reads best on it, at 5.40:1.
| Hue family | Reds |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.126) |
| Temperature | warm |
| Nearest name | Indian Red (#CD5C5C) |
| Black text | 5.40:1 |
| White text | 3.88:1 |
Values
| HEX | #C66558 |
| RGB | rgb(198, 101, 88) |
| HSL | hsl(7, 49%, 56%) |
| OKLCH | oklch(61.8% 0.126 29.1) |
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 #C66558 | 3.88:1 | AA large text | Lc -71.4 | Content text, not long reading |
| Black text on #C66558 | 5.40:1 | AA | Lc 38.2 | Non-text elements, placeholder text |
| #C66558 text on white | 3.88:1 | AA large text | Lc 65.9 | Content text, not long reading |
| #C66558 text on black | 5.40:1 | AA | Lc -35.8 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F6E6E3
oklch(93.7% 0.018 30.3)
-
Step 200
200
#EFD1CC
oklch(88.4% 0.034 29)
-
Step 300
300
#E6B2AA
oklch(80.9% 0.062 28.5)
-
Step 400
400
#D7897D
oklch(70.8% 0.098 29.2)
-
Step 500
500 (this color)
#C66558
oklch(61.8% 0.126 29.1)
-
Step 600
600
#B64E42
oklch(55.6% 0.138 28.9)
-
Step 700
700
#9C3E34
oklch(49% 0.128 28.7)
-
Step 800
800
#7F342B
oklch(42.7% 0.106 29.1)
-
Step 900
900
#662E27
oklch(37.6% 0.082 28.8)
-
Step 950
950
#3C1C17
oklch(27% 0.051 30.1)
#C66558 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) | #7C7557 | 0.130 |
| Deuteranopia (no green cones) | #948956 | 0.120 |
| Tritanopia (no blue cones) | #D75562 | 0.048 |
| Achromatopsia (no color) | #818181 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C66558
#C66558
oklch(61.8% 0.126 29.1)
- #0097A8
#0097A8
oklch(61.9% 0.107 208.8)
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 #C66558, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Indian Red #CD5C5C ΔE 0.024
- Terracotta #CA6641 ΔE 0.029
- Terracota #CB6843 ΔE 0.029
- Terra Cotta #C9643B ΔE 0.033
- Clay #B66A50 ΔE 0.033
- Adobe #BD6C48 ΔE 0.034
- Dark Coral #CF524E ΔE 0.038
- Dusky Rose #BA6873 ΔE 0.040
Use #C66558 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.