#CC583B
Closest named color: Terra Cotta (#C9643B). oklch(60.3% 0.154 35.2), rgb(204, 88, 59).
Aa
Black text reads best on this color (5.02:1).
About this color
#CC583B is a medium-dark, vivid red. In OKLCH its lightness is 60%, its chroma 0.154 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Terra Cotta (#C9643B), ΔE 0.026 away. Black text reads best on it, at 5.02:1.
| Hue family | Reds |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.154) |
| Temperature | warm |
| Nearest name | Terra Cotta (#C9643B) |
| Black text | 5.02:1 |
| White text | 4.17:1 |
Values
| HEX | #CC583B |
| RGB | rgb(204, 88, 59) |
| HSL | hsl(12, 59%, 52%) |
| OKLCH | oklch(60.3% 0.154 35.2) |
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 #CC583B | 4.17:1 | AA large text | Lc -73.6 | Content text, not long reading |
| Black text on #CC583B | 5.02:1 | AA | Lc 36.0 | Non-text elements, placeholder text |
| #CC583B text on white | 4.17:1 | AA large text | Lc 68.1 | Content text, not long reading |
| #CC583B text on black | 5.02:1 | AA | Lc -33.6 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F8E5E0
oklch(93.6% 0.022 35.1)
-
Step 200
200
#F3D0C7
oklch(88.5% 0.041 34.8)
-
Step 300
300
#EDB0A0
oklch(81% 0.075 35.2)
-
Step 400
400
#E1846C
oklch(70.8% 0.12 35.3)
-
Step 500
500 (this color)
#CC583B
oklch(60.3% 0.154 35.2)
-
Step 600
600
#C14323
oklch(55.5% 0.168 35.1)
-
Step 700
700
#A63415
oklch(49.1% 0.155 35.3)
-
Step 800
800
#872C15
oklch(42.7% 0.129 35)
-
Step 900
900
#6D2918
oklch(37.7% 0.101 35.2)
-
Step 950
950
#40190F
oklch(27% 0.064 35.5)
#CC583B 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) | #776C38 | 0.155 |
| Deuteranopia (no green cones) | #948638 | 0.143 |
| Tritanopia (no blue cones) | #E03F52 | 0.065 |
| Achromatopsia (no color) | #7C7C7C | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CC583B
#CC583B
oklch(60.3% 0.154 35.2)
- #0090A9
#0090A9
oklch(60.2% 0.107 215.7)
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 #CC583B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Terra Cotta #C9643B ΔE 0.026
- Terracotta #CA6641 ΔE 0.029
- Dark Coral #CF524E ΔE 0.029
- Rusty Orange #CD5909 ΔE 0.033
- Terracota #CB6843 ΔE 0.033
- Pale Red #D9544D ΔE 0.034
- Rust Orange #C45508 ΔE 0.037
- Indian Red #CD5C5C ΔE 0.037
Use #CC583B 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.