#C55630
Closest named color: Rust Orange (#C45508). oklch(58.8% 0.152 38.8), rgb(197, 86, 48).
Aa
Black text reads best on this color (4.74:1).
About this color
#C55630 is a medium-dark, vivid red. In OKLCH its lightness is 59%, its chroma 0.152 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Orange (#C45508), ΔE 0.023 away. Black text reads best on it, at 4.74:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.152) |
| Temperature | warm |
| Nearest name | Rust Orange (#C45508) |
| Black text | 4.74:1 |
| White text | 4.42:1 |
Values
| HEX | #C55630 |
| RGB | rgb(197, 86, 48) |
| HSL | hsl(15, 61%, 48%) |
| OKLCH | oklch(58.8% 0.152 38.8) |
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 #C55630 | 4.42:1 | AA large text | Lc -75.5 | Fine for body text |
| Black text on #C55630 | 4.74:1 | AA | Lc 34.1 | Non-text elements, placeholder text |
| #C55630 text on white | 4.42:1 | AA large text | Lc 70.0 | Content text, not long reading |
| #C55630 text on black | 4.74:1 | AA | Lc -31.7 | 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 600.
-
Step 50
50
#FBF3F1
oklch(97% 0.009 34.3)
-
Step 100
100
#F6E6E0
oklch(93.6% 0.019 41.8)
-
Step 200
200
#F1D1C7
oklch(88.5% 0.039 38.1)
-
Step 300
300
#E8B2A1
oklch(80.8% 0.068 38.2)
-
Step 400
400
#DB886D
oklch(70.7% 0.109 38.8)
-
Step 500
500
#CF6845
oklch(63.2% 0.14 39.2)
-
Step 600
600 (this color)
#C55630
oklch(58.8% 0.152 38.8)
-
Step 700
700
#A03C18
oklch(49.1% 0.141 38.6)
-
Step 800
800
#823317
oklch(42.8% 0.116 38.9)
-
Step 900
900
#692D19
oklch(37.7% 0.092 38.7)
-
Step 950
950
#3E1B10
oklch(27% 0.058 38.1)
#C55630 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) | #75692B | 0.148 |
| Deuteranopia (no green cones) | #90812D | 0.135 |
| Tritanopia (no blue cones) | #D83D4E | 0.070 |
| Achromatopsia (no color) | #787878 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C55630
#C55630
oklch(58.8% 0.152 38.8)
- #008BA7
#008BA7
oklch(58.8% 0.106 218.7)
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 #C55630, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Orange #C45508 ΔE 0.023
- Rusty Orange #CD5909 ΔE 0.029
- Burnt Orange #C04E01 ΔE 0.029
- Brick Orange #C14A09 ΔE 0.030
- Terra Cotta #C9643B ΔE 0.031
- Terracotta #CA6641 ΔE 0.037
- Burnt Siena #B75203 ΔE 0.039
- Dark Coral #CF524E ΔE 0.041
Use #C55630 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.