#C15B2D
Closest named color: Rust Orange (#C45508). oklch(58.9% 0.144 43), rgb(193, 91, 45).
Aa
Black text reads best on this color (4.80:1).
About this color
#C15B2D is a medium-dark, vivid orange. In OKLCH its lightness is 59%, its chroma 0.144 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Orange (#C45508), ΔE 0.020 away. Black text reads best on it, at 4.80:1.
| Hue family | Oranges |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.144) |
| Temperature | warm |
| Nearest name | Rust Orange (#C45508) |
| Black text | 4.80:1 |
| White text | 4.37:1 |
Values
| HEX | #C15B2D |
| RGB | rgb(193, 91, 45) |
| HSL | hsl(19, 62%, 47%) |
| OKLCH | oklch(58.9% 0.144 43) |
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 #C15B2D | 4.37:1 | AA large text | Lc -75.2 | Fine for body text |
| Black text on #C15B2D | 4.80:1 | AA | Lc 34.4 | Non-text elements, placeholder text |
| #C15B2D text on white | 4.37:1 | AA large text | Lc 69.7 | Content text, not long reading |
| #C15B2D text on black | 4.80:1 | AA | Lc -31.9 | 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
#F6E6E0
oklch(93.6% 0.019 41.8)
-
Step 200
200
#EFD2C7
oklch(88.5% 0.036 41.9)
-
Step 300
300
#E6B4A0
oklch(81% 0.065 42.9)
-
Step 400
400
#D78B6B
oklch(70.7% 0.104 43.5)
-
Step 500
500
#CA6B43
oklch(63% 0.132 42.7)
-
Step 600
600 (this color)
#C15B2D
oklch(58.9% 0.144 43)
-
Step 700
700
#9C4113
oklch(49.1% 0.133 43.2)
-
Step 800
800
#7F3614
oklch(42.7% 0.111 42.8)
-
Step 900
900
#663018
oklch(37.7% 0.086 43.3)
-
Step 950
950
#3C1D0F
oklch(27.1% 0.054 44.2)
#C15B2D 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) | #776B27 | 0.136 |
| Deuteranopia (no green cones) | #90812A | 0.123 |
| Tritanopia (no blue cones) | #D44551 | 0.074 |
| Achromatopsia (no color) | #797979 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C15B2D
#C15B2D
oklch(58.9% 0.144 43)
- #008AAC
#008AAC
oklch(58.8% 0.11 223.2)
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 #C15B2D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Orange #C45508 ΔE 0.020
- Rusty Orange #CD5909 ΔE 0.027
- Terra Cotta #C9643B ΔE 0.027
- Copper #B66325 ΔE 0.028
- Burnt Orange #C04E01 ΔE 0.030
- Terracotta #CA6641 ΔE 0.034
- Brick Orange #C14A09 ΔE 0.034
- Burnt Siena #B75203 ΔE 0.035
Use #C15B2D 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.