#C55823
Closest named color: Rust Orange (#C45508). oklch(59% 0.153 43.4), rgb(197, 88, 35).
Aa
Black text reads best on this color (4.79:1).
About this color
#C55823 is a medium-dark, vivid orange. In OKLCH its lightness is 59%, its chroma 0.153 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Orange (#C45508), ΔE 0.013 away. Black text reads best on it, at 4.79:1.
| Hue family | Oranges |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.153) |
| Temperature | warm |
| Nearest name | Rust Orange (#C45508) |
| Black text | 4.79:1 |
| White text | 4.38:1 |
Values
| HEX | #C55823 |
| RGB | rgb(197, 88, 35) |
| HSL | hsl(20, 70%, 45%) |
| OKLCH | oklch(59% 0.153 43.4) |
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 #C55823 | 4.38:1 | AA large text | Lc -75.2 | Fine for body text |
| Black text on #C55823 | 4.79:1 | AA | Lc 34.4 | Non-text elements, placeholder text |
| #C55823 text on white | 4.38:1 | AA large text | Lc 69.7 | Content text, not long reading |
| #C55823 text on black | 4.79:1 | AA | Lc -32.0 | 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 600.
-
Step 50
50
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F6E6DF
oklch(93.6% 0.02 45.3)
-
Step 200
200
#F0D2C5
oklch(88.5% 0.038 44.8)
-
Step 300
300
#E8B39D
oklch(80.9% 0.069 43.6)
-
Step 400
400
#DA8967
oklch(70.7% 0.11 43.4)
-
Step 500
500
#CE693C
oklch(63.1% 0.141 43.4)
-
Step 600
600 (this color)
#C55823
oklch(59% 0.153 43.4)
-
Step 700
700
#9F3E03
oklch(49.1% 0.142 43.7)
-
Step 800
800
#81340A
oklch(42.7% 0.117 43.9)
-
Step 900
900
#682E13
oklch(37.6% 0.092 43.5)
-
Step 950
950
#3D1C0D
oklch(27% 0.057 44)
#C55823 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) | #77691B | 0.145 |
| Deuteranopia (no green cones) | #91821F | 0.133 |
| Tritanopia (no blue cones) | #D93F4E | 0.079 |
| Achromatopsia (no color) | #797979 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C55823
#C55823
oklch(59% 0.153 43.4)
- #008BAD
#008BAD
oklch(59.1% 0.11 223)
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 #C55823, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Orange #C45508 ΔE 0.013
- Rusty Orange #CD5909 ΔE 0.019
- Burnt Orange #C04E01 ΔE 0.025
- Terra Cotta #C9643B ΔE 0.030
- Brick Orange #C14A09 ΔE 0.030
- Copper #B66325 ΔE 0.034
- Burnt Siena #B75203 ΔE 0.034
- Orange Brown #BE6400 ΔE 0.036
Use #C55823 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.