#CB5800
Closest named color: Rusty Orange (#CD5909). oklch(59.8% 0.165 47), rgb(203, 88, 0).
Aa
Black text reads best on this color (4.93:1).
About this color
#CB5800 is a medium-dark, vivid orange. In OKLCH its lightness is 60%, its chroma 0.165 and its hue 47°. Its hue sits on the warm side of the wheel. The nearest named color is Rusty Orange (#CD5909), ΔE 0.005 away. Black text reads best on it, at 4.93:1.
| Hue family | Oranges |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.165) |
| Temperature | warm |
| Nearest name | Rusty Orange (#CD5909) |
| Black text | 4.93:1 |
| White text | 4.25:1 |
Values
| HEX | #CB5800 |
| RGB | rgb(203, 88, 0) |
| HSL | hsl(26, 100%, 40%) |
| OKLCH | oklch(59.8% 0.165 47) |
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 #CB5800 | 4.25:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #CB5800 | 4.93:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #CB5800 text on white | 4.25:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #CB5800 text on black | 4.93:1 | AA | Lc -33.1 | 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
#FCF3EF
oklch(97% 0.011 45.7)
-
Step 100
100
#F8E6DD
oklch(93.7% 0.023 48.5)
-
Step 200
200
#F3D1C0
oklch(88.5% 0.045 48.2)
-
Step 300
300
#EDB194
oklch(80.9% 0.081 46.9)
-
Step 400
400
#E28556
oklch(70.7% 0.13 46.7)
-
Step 500
500 (this color)
#CB5800
oklch(59.8% 0.165 47)
-
Step 600
600
#B84F00
oklch(55.5% 0.154 46.9)
-
Step 700
700
#9C4200
oklch(49.2% 0.136 47)
-
Step 800
800
#813500
oklch(42.8% 0.119 46.8)
-
Step 900
900
#6C2B00
oklch(37.6% 0.105 46.7)
-
Step 950
950
#401A04
oklch(27% 0.068 47.6)
#CB5800 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) | #7A6A00 | 0.150 |
| Deuteranopia (no green cones) | #968500 | 0.137 |
| Tritanopia (no blue cones) | #E03B4B | 0.090 |
| Achromatopsia (no color) | #7B7B7B | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CB5800
#CB5800
oklch(59.8% 0.165 47)
- #008CB4
#008CB4
oklch(59.7% 0.115 226.9)
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 #CB5800, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rusty Orange #CD5909 ΔE 0.005
- Rust Orange #C45508 ΔE 0.016
- Burnt Orange #C04E01 ΔE 0.032
- Rust #CA6702 ΔE 0.032
- Orange Brown #BE6400 ΔE 0.033
- Terra Cotta #C9643B ΔE 0.034
- Deep Orange #DC4D01 ΔE 0.035
- Brick Orange #C14A09 ΔE 0.037
Use #CB5800 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.