#C66547
Closest named color: Terracotta (#CA6641). oklch(61.5% 0.131 37.9), rgb(198, 101, 71).
Aa
Black text reads best on this color (5.35:1).
About this color
#C66547 is a medium-dark, moderately saturated red. In OKLCH its lightness is 62%, its chroma 0.131 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Terracotta (#CA6641), ΔE 0.011 away. Black text reads best on it, at 5.35:1.
| Hue family | Reds |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.131) |
| Temperature | warm |
| Nearest name | Terracotta (#CA6641) |
| Black text | 5.35:1 |
| White text | 3.92:1 |
Values
| HEX | #C66547 |
| RGB | rgb(198, 101, 71) |
| HSL | hsl(14, 53%, 53%) |
| OKLCH | oklch(61.5% 0.131 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 #C66547 | 3.92:1 | AA large text | Lc -71.7 | Content text, not long reading |
| Black text on #C66547 | 5.35:1 | AA | Lc 37.9 | Non-text elements, placeholder text |
| #C66547 text on white | 3.92:1 | AA large text | Lc 66.2 | Content text, not long reading |
| #C66547 text on black | 5.35:1 | AA | Lc -35.5 | 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
#EFD2C8
oklch(88.5% 0.035 40)
-
Step 300
300
#E6B3A3
oklch(80.9% 0.064 38.1)
-
Step 400
400
#D88971
oklch(70.6% 0.103 37.7)
-
Step 500
500 (this color)
#C66547
oklch(61.5% 0.131 37.9)
-
Step 600
600
#B74F2E
oklch(55.6% 0.143 37.9)
-
Step 700
700
#9D3F21
oklch(49.1% 0.133 37.8)
-
Step 800
800
#80351D
oklch(42.8% 0.11 38)
-
Step 900
900
#672F1D
oklch(37.7% 0.086 38.4)
-
Step 950
950
#3D1C12
oklch(27.1% 0.055 37.6)
#C66547 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) | #7E7444 | 0.128 |
| Deuteranopia (no green cones) | #968945 | 0.118 |
| Tritanopia (no blue cones) | #D8535E | 0.061 |
| Achromatopsia (no color) | #808080 | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C66547
#C66547
oklch(61.5% 0.131 37.9)
- #0094B1
#0094B1
oklch(61.5% 0.111 218.2)
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 #C66547, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Terracotta #CA6641 ΔE 0.011
- Terra Cotta #C9643B ΔE 0.013
- Terracota #CB6843 ΔE 0.014
- Adobe #BD6C48 ΔE 0.021
- Clay #B66A50 ΔE 0.029
- Indian Red #CD5C5C ΔE 0.040
- Rusty Orange #CD5909 ΔE 0.042
- Chocolate #D2691E ΔE 0.043
Use #C66547 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.