#C5603F
Closest named color: Terra Cotta (#C9643B). oklch(60.5% 0.138 38.6), rgb(197, 96, 63).
Aa
Black text reads best on this color (5.11:1).
About this color
#C5603F is a medium-dark, moderately saturated red. In OKLCH its lightness is 60%, its chroma 0.138 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Terra Cotta (#C9643B), ΔE 0.014 away. Black text reads best on it, at 5.11:1.
| Hue family | Reds |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.138) |
| Temperature | warm |
| Nearest name | Terra Cotta (#C9643B) |
| Black text | 5.11:1 |
| White text | 4.10:1 |
Values
| HEX | #C5603F |
| RGB | rgb(197, 96, 63) |
| HSL | hsl(15, 54%, 51%) |
| OKLCH | oklch(60.5% 0.138 38.6) |
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 #C5603F | 4.10:1 | AA large text | Lc -73.2 | Content text, not long reading |
| Black text on #C5603F | 5.11:1 | AA | Lc 36.4 | Non-text elements, placeholder text |
| #C5603F text on white | 4.10:1 | AA large text | Lc 67.7 | Content text, not long reading |
| #C5603F text on black | 5.11:1 | AA | Lc -34.0 | 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
#F0D1C7
oklch(88.4% 0.038 38.7)
-
Step 300
300
#E8B2A1
oklch(80.8% 0.068 38.2)
-
Step 400
400
#DA886E
oklch(70.6% 0.108 38.4)
-
Step 500
500 (this color)
#C5603F
oklch(60.5% 0.138 38.6)
-
Step 600
600
#B94D27
oklch(55.6% 0.149 38.9)
-
Step 700
700
#9F3D1A
oklch(49.1% 0.139 38.7)
-
Step 800
800
#813318
oklch(42.6% 0.115 38.7)
-
Step 900
900
#682E1A
oklch(37.7% 0.089 39.2)
-
Step 950
950
#3D1B10
oklch(26.9% 0.057 38.5)
#C5603F 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) | #7B703C | 0.133 |
| Deuteranopia (no green cones) | #94863D | 0.123 |
| Tritanopia (no blue cones) | #D84C58 | 0.065 |
| Achromatopsia (no color) | #7D7D7D | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C5603F
#C5603F
oklch(60.5% 0.138 38.6)
- #0090AD
#0090AD
oklch(60.4% 0.109 218.7)
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 #C5603F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Terra Cotta #C9643B ΔE 0.014
- Terracotta #CA6641 ΔE 0.017
- Terracota #CB6843 ΔE 0.022
- Adobe #BD6C48 ΔE 0.028
- Clay #B66A50 ΔE 0.033
- Rusty Orange #CD5909 ΔE 0.034
- Rust Orange #C45508 ΔE 0.037
- Copper #B66325 ΔE 0.040
Use #C5603F 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.