#C15A2F
Closest named color: Rust Orange (#C45508). oklch(58.8% 0.144 41.8), rgb(193, 90, 47).
Aa
Black text reads best on this color (4.77:1).
About this color
#C15A2F is a medium-dark, vivid orange. In OKLCH its lightness is 59%, its chroma 0.144 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Orange (#C45508), ΔE 0.021 away. Black text reads best on it, at 4.77:1.
| Hue family | Oranges |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.144) |
| Temperature | warm |
| Nearest name | Rust Orange (#C45508) |
| Black text | 4.77:1 |
| White text | 4.40:1 |
Values
| HEX | #C15A2F |
| RGB | rgb(193, 90, 47) |
| HSL | hsl(18, 61%, 47%) |
| OKLCH | oklch(58.8% 0.144 41.8) |
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 #C15A2F | 4.40:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #C15A2F | 4.77:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #C15A2F text on white | 4.40:1 | AA large text | Lc 69.9 | Content text, not long reading |
| #C15A2F text on black | 4.77:1 | 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
#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
#E6B3A0
oklch(80.8% 0.065 41.4)
-
Step 400
400
#D78A6D
oklch(70.6% 0.103 41.4)
-
Step 500
500
#CB6B45
oklch(63.1% 0.133 41.7)
-
Step 600
600 (this color)
#C15A2F
oklch(58.8% 0.144 41.8)
-
Step 700
700
#9D4016
oklch(49.1% 0.135 41.7)
-
Step 800
800
#7F3616
oklch(42.7% 0.11 42.1)
-
Step 900
900
#672F19
oklch(37.7% 0.087 41.2)
-
Step 950
950
#3C1C10
oklch(26.9% 0.054 40.9)
#C15A2F 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) | #776A2A | 0.136 |
| Deuteranopia (no green cones) | #90812C | 0.125 |
| Tritanopia (no blue cones) | #D44451 | 0.072 |
| Achromatopsia (no color) | #787878 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C15A2F
#C15A2F
oklch(58.8% 0.144 41.8)
- #008AAA
#008AAA
oklch(58.7% 0.108 221.8)
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 #C15A2F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Orange #C45508 ΔE 0.021
- Rusty Orange #CD5909 ΔE 0.029
- Terra Cotta #C9643B ΔE 0.029
- Burnt Orange #C04E01 ΔE 0.029
- Copper #B66325 ΔE 0.031
- Brick Orange #C14A09 ΔE 0.033
- Terracotta #CA6641 ΔE 0.034
- Burnt Siena #B75203 ΔE 0.035
Use #C15A2F 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.