#C66243
Closest named color: Terra Cotta (#C9643B). oklch(61% 0.136 37.9), rgb(198, 98, 67).
Aa
Black text reads best on this color (5.22:1).
About this color
#C66243 is a medium-dark, moderately saturated red. In OKLCH its lightness is 61%, its chroma 0.136 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Terra Cotta (#C9643B), ΔE 0.012 away. Black text reads best on it, at 5.22:1.
| Hue family | Reds |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.136) |
| Temperature | warm |
| Nearest name | Terra Cotta (#C9643B) |
| Black text | 5.22:1 |
| White text | 4.01:1 |
Values
| HEX | #C66243 |
| RGB | rgb(198, 98, 67) |
| HSL | hsl(14, 53%, 52%) |
| OKLCH | oklch(61% 0.136 37.9) |
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 #C66243 | 4.01:1 | AA large text | Lc -72.5 | Content text, not long reading |
| Black text on #C66243 | 5.22:1 | AA | Lc 37.1 | Non-text elements, placeholder text |
| #C66243 text on white | 4.01:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #C66243 text on black | 5.22:1 | AA | Lc -34.7 | 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
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F6E6E1
oklch(93.6% 0.019 38.1)
-
Step 200
200
#F0D1C8
oklch(88.4% 0.037 36.8)
-
Step 300
300
#E7B2A2
oklch(80.8% 0.066 37.5)
-
Step 400
400
#DA8970
oklch(70.8% 0.106 37.9)
-
Step 500
500 (this color)
#C66243
oklch(61% 0.136 37.9)
-
Step 600
600
#B94D2B
oklch(55.6% 0.148 37.7)
-
Step 700
700
#9F3D1D
oklch(49.1% 0.138 37.8)
-
Step 800
800
#81331B
oklch(42.7% 0.114 37.4)
-
Step 900
900
#682E1C
oklch(37.7% 0.088 37.8)
-
Step 950
950
#3D1C11
oklch(27.1% 0.055 39)
#C66243 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) | #7C7140 | 0.132 |
| Deuteranopia (no green cones) | #958741 | 0.121 |
| Tritanopia (no blue cones) | #D84F5B | 0.063 |
| Achromatopsia (no color) | #7F7F7F | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C66243
#C66243
oklch(61% 0.136 37.9)
- #0092AF
#0092AF
oklch(60.9% 0.11 218.5)
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 #C66243, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Terra Cotta #C9643B ΔE 0.012
- Terracotta #CA6641 ΔE 0.013
- Terracota #CB6843 ΔE 0.018
- Adobe #BD6C48 ΔE 0.025
- Clay #B66A50 ΔE 0.032
- Rusty Orange #CD5909 ΔE 0.038
- Indian Red #CD5C5C ΔE 0.039
- Dark Coral #CF524E ΔE 0.042
Use #C66243 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.