#CB6511
Closest named color: Rust (#CA6702). oklch(61.8% 0.154 51.8), rgb(203, 101, 17).
Aa
Black text reads best on this color (5.40:1).
About this color
#CB6511 is a medium-dark, vivid orange. In OKLCH its lightness is 62%, its chroma 0.154 and its hue 52°. Its hue sits on the warm side of the wheel. The nearest named color is Rust (#CA6702), ΔE 0.007 away. Black text reads best on it, at 5.40:1.
| Hue family | Oranges |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.154) |
| Temperature | warm |
| Nearest name | Rust (#CA6702) |
| Black text | 5.40:1 |
| White text | 3.88:1 |
Values
| HEX | #CB6511 |
| RGB | rgb(203, 101, 17) |
| HSL | hsl(27, 85%, 43%) |
| OKLCH | oklch(61.8% 0.154 51.8) |
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 #CB6511 | 3.88:1 | AA large text | Lc -71.2 | Content text, not long reading |
| Black text on #CB6511 | 5.40:1 | AA | Lc 38.4 | Non-text elements, placeholder text |
| #CB6511 text on white | 3.88:1 | AA large text | Lc 65.7 | Content text, not long reading |
| #CB6511 text on black | 5.40:1 | AA | Lc -36.0 | 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
#FBF4EF
oklch(97.1% 0.01 58.2)
-
Step 100
100
#F6E6DD
oklch(93.5% 0.021 51.5)
-
Step 200
200
#F1D2C1
oklch(88.5% 0.042 50.6)
-
Step 300
300
#E9B394
oklch(80.8% 0.076 51.2)
-
Step 400
400
#DB8A56
oklch(70.7% 0.12 52.4)
-
Step 500
500 (this color)
#CB6511
oklch(61.8% 0.154 51.8)
-
Step 600
600
#B25500
oklch(55.5% 0.143 51.6)
-
Step 700
700
#974700
oklch(49.2% 0.127 51.6)
-
Step 800
800
#7C3900
oklch(42.6% 0.11 51.5)
-
Step 900
900
#682F00
oklch(37.6% 0.097 51.8)
-
Step 950
950
#3E1C04
oklch(27.1% 0.063 52.1)
#CB6511 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) | #837300 | 0.131 |
| Deuteranopia (no green cones) | #9B8A0D | 0.119 |
| Tritanopia (no blue cones) | #DF4D57 | 0.095 |
| Achromatopsia (no color) | #818181 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CB6511
#CB6511
oklch(61.8% 0.154 51.8)
- #0091C3
#0091C3
oklch(61.7% 0.126 231.8)
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 #CB6511, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust #CA6702 ΔE 0.007
- Browny Orange #CA6B02 ΔE 0.015
- Chocolate #D2691E ΔE 0.017
- Rusty Orange #CD5909 ΔE 0.025
- Orange Brown #BE6400 ΔE 0.026
- Tiger's Eye #BC6C25 ΔE 0.029
- Terra Cotta #C9643B ΔE 0.029
- Terracotta #CA6641 ΔE 0.033
Use #CB6511 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.