#C66E59
Closest named color: Terracota (#CB6843). oklch(63.3% 0.117 34.4), rgb(198, 110, 89).
Aa
Black text reads best on this color (5.77:1).
About this color
#C66E59 is a medium-light, moderately saturated red. In OKLCH its lightness is 63%, its chroma 0.117 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Terracota (#CB6843), ΔE 0.025 away. Black text reads best on it, at 5.77:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.117) |
| Temperature | warm |
| Nearest name | Terracota (#CB6843) |
| Black text | 5.77:1 |
| White text | 3.63:1 |
Values
| HEX | #C66E59 |
| RGB | rgb(198, 110, 89) |
| HSL | hsl(12, 49%, 56%) |
| OKLCH | oklch(63.3% 0.117 34.4) |
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 #C66E59 | 3.63:1 | AA large text | Lc -69.1 | Content text, not long reading |
| Black text on #C66E59 | 5.77:1 | AA | Lc 40.5 | Non-text elements, placeholder text |
| #C66E59 text on white | 3.63:1 | AA large text | Lc 63.6 | Content text, not long reading |
| #C66E59 text on black | 5.77:1 | AA | Lc -38.1 | 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
#FAF4F2
oklch(97.1% 0.007 39.5)
-
Step 100
100
#F5E6E3
oklch(93.6% 0.017 31.1)
-
Step 200
200
#EDD2CB
oklch(88.4% 0.032 34.9)
-
Step 300
300
#E3B4A8
oklch(80.9% 0.058 34.7)
-
Step 400
400
#D38C7A
oklch(70.7% 0.091 34.9)
-
Step 500
500 (this color)
#C66E59
oklch(63.3% 0.117 34.4)
-
Step 600
600
#B1543E
oklch(55.7% 0.127 34.6)
-
Step 700
700
#984430
oklch(49.2% 0.118 34.7)
-
Step 800
800
#7B3828
oklch(42.6% 0.098 34.7)
-
Step 900
900
#643125
oklch(37.8% 0.077 34.4)
-
Step 950
950
#3B1D16
oklch(27% 0.049 34.1)
#C66E59 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) | #847B57 | 0.114 |
| Deuteranopia (no green cones) | #998D58 | 0.106 |
| Tritanopia (no blue cones) | #D75F69 | 0.053 |
| Achromatopsia (no color) | #868686 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C66E59
#C66E59
oklch(63.3% 0.117 34.4)
- #009BB3
#009BB3
oklch(63.4% 0.111 213.8)
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 #C66E59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Terracota #CB6843 ΔE 0.025
- Adobe #BD6C48 ΔE 0.027
- Terracotta #CA6641 ΔE 0.027
- Terra Cotta #C9643B ΔE 0.033
- Clay #B66A50 ΔE 0.033
- Pinkish Brown #B17261 ΔE 0.037
- Dusty Rose #C0737A ΔE 0.043
- Indian Red #CD5C5C ΔE 0.043
Use #C66E59 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.