#CE603A
Closest named color: Terra Cotta (#C9643B). oklch(61.7% 0.149 39.2), rgb(206, 96, 58).
Aa
Black text reads best on this color (5.35:1).
About this color
#CE603A is a medium-dark, vivid red. In OKLCH its lightness is 62%, its chroma 0.149 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Terra Cotta (#C9643B), ΔE 0.011 away. Black text reads best on it, at 5.35:1.
| Hue family | Reds |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.149) |
| Temperature | warm |
| Nearest name | Terra Cotta (#C9643B) |
| Black text | 5.35:1 |
| White text | 3.91:1 |
Values
| HEX | #CE603A |
| RGB | rgb(206, 96, 58) |
| HSL | hsl(15, 60%, 52%) |
| OKLCH | oklch(61.7% 0.149 39.2) |
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 #CE603A | 3.91:1 | AA large text | Lc -71.5 | Content text, not long reading |
| Black text on #CE603A | 5.35:1 | AA | Lc 38.1 | Non-text elements, placeholder text |
| #CE603A text on white | 3.91:1 | AA large text | Lc 66.0 | Content text, not long reading |
| #CE603A text on black | 5.35:1 | AA | Lc -35.7 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F7E5E0
oklch(93.5% 0.021 36)
-
Step 200
200
#F2D1C6
oklch(88.5% 0.04 39.3)
-
Step 300
300
#EBB19E
oklch(80.9% 0.073 38.9)
-
Step 400
400
#DE8668
oklch(70.7% 0.117 39.5)
-
Step 500
500 (this color)
#CE603A
oklch(61.7% 0.149 39.2)
-
Step 600
600
#BE481A
oklch(55.6% 0.162 39.3)
-
Step 700
700
#A4380A
oklch(49.2% 0.151 39.1)
-
Step 800
800
#852F0E
oklch(42.7% 0.126 39)
-
Step 900
900
#6B2B15
oklch(37.6% 0.098 38.8)
-
Step 950
950
#3F1A0E
oklch(27% 0.062 38.5)
#CE603A 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) | #7E7236 | 0.145 |
| Deuteranopia (no green cones) | #998A37 | 0.133 |
| Tritanopia (no blue cones) | #E24958 | 0.071 |
| Achromatopsia (no color) | #818181 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CE603A
#CE603A
oklch(61.7% 0.149 39.2)
- #0094B3
#0094B3
oklch(61.6% 0.112 219.6)
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 #CE603A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Terra Cotta #C9643B ΔE 0.011
- Terracotta #CA6641 ΔE 0.013
- Terracota #CB6843 ΔE 0.017
- Rusty Orange #CD5909 ΔE 0.029
- Chocolate #D2691E ΔE 0.034
- Adobe #BD6C48 ΔE 0.036
- Rust #CA6702 ΔE 0.040
- Pale Red #D9544D ΔE 0.041
Use #CE603A 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.