#C66758
Closest named color: Terracotta (#CA6641). oklch(62.1% 0.124 30.3), rgb(198, 103, 88).
Aa
Black text reads best on this color (5.48:1).
About this color
#C66758 is a medium-light, moderately saturated red. In OKLCH its lightness is 62%, its chroma 0.124 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Terracotta (#CA6641), ΔE 0.027 away. Black text reads best on it, at 5.48:1.
| Hue family | Reds |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.124) |
| Temperature | warm |
| Nearest name | Terracotta (#CA6641) |
| Black text | 5.48:1 |
| White text | 3.83:1 |
Values
| HEX | #C66758 |
| RGB | rgb(198, 103, 88) |
| HSL | hsl(8, 49%, 56%) |
| OKLCH | oklch(62.1% 0.124 30.3) |
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 #C66758 | 3.83:1 | AA large text | Lc -70.9 | Content text, not long reading |
| Black text on #C66758 | 5.48:1 | AA | Lc 38.7 | Non-text elements, placeholder text |
| #C66758 text on white | 3.83:1 | AA large text | Lc 65.4 | Content text, not long reading |
| #C66758 text on black | 5.48:1 | AA | Lc -36.3 | 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
#FBF4F2
oklch(97.2% 0.008 36.6)
-
Step 100
100
#F5E6E3
oklch(93.6% 0.017 31.1)
-
Step 200
200
#EFD1CC
oklch(88.4% 0.034 29)
-
Step 300
300
#E5B3A9
oklch(80.9% 0.06 31.4)
-
Step 400
400
#D6897C
oklch(70.6% 0.097 30.1)
-
Step 500
500 (this color)
#C66758
oklch(62.1% 0.124 30.3)
-
Step 600
600
#B54F41
oklch(55.6% 0.136 29.9)
-
Step 700
700
#9B4033
oklch(49.1% 0.125 30.3)
-
Step 800
800
#7E352A
oklch(42.7% 0.104 30.6)
-
Step 900
900
#662F27
oklch(37.8% 0.081 29.9)
-
Step 950
950
#3C1C17
oklch(27% 0.051 30.1)
#C66758 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) | #7E7656 | 0.126 |
| Deuteranopia (no green cones) | #958A56 | 0.117 |
| Tritanopia (no blue cones) | #D75764 | 0.050 |
| Achromatopsia (no color) | #828282 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C66758
#C66758
oklch(62.1% 0.124 30.3)
- #0097AA
#0097AA
oklch(62% 0.107 210.3)
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 #C66758, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Terracotta #CA6641 ΔE 0.027
- Terracota #CB6843 ΔE 0.027
- Indian Red #CD5C5C ΔE 0.028
- Adobe #BD6C48 ΔE 0.031
- Terra Cotta #C9643B ΔE 0.031
- Clay #B66A50 ΔE 0.032
- Pinkish Brown #B17261 ΔE 0.041
- Dusky Rose #BA6873 ΔE 0.042
Use #C66758 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.