#C15F37
Closest named color: Terra Cotta (#C9643B). oklch(59.7% 0.137 41.8), rgb(193, 95, 55).
Aa
Black text reads best on this color (4.95:1).
About this color
#C15F37 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 60%, its chroma 0.137 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Terra Cotta (#C9643B), ΔE 0.020 away. Black text reads best on it, at 4.95:1.
| Hue family | Browns |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.137) |
| Temperature | warm |
| Nearest name | Terra Cotta (#C9643B) |
| Black text | 4.95:1 |
| White text | 4.23:1 |
Values
| HEX | #C15F37 |
| RGB | rgb(193, 95, 55) |
| HSL | hsl(17, 56%, 49%) |
| OKLCH | oklch(59.7% 0.137 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 #C15F37 | 4.23:1 | AA large text | Lc -74.2 | Content text, not long reading |
| Black text on #C15F37 | 4.95:1 | AA | Lc 35.4 | Non-text elements, placeholder text |
| #C15F37 text on white | 4.23:1 | AA large text | Lc 68.7 | Content text, not long reading |
| #C15F37 text on black | 4.95:1 | AA | Lc -32.9 | 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 500.
-
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
#F0D2C6
oklch(88.6% 0.038 43.1)
-
Step 300
300
#E7B39F
oklch(80.9% 0.067 42)
-
Step 400
400
#D9896B
oklch(70.6% 0.107 41.3)
-
Step 500
500 (this color)
#C15F37
oklch(59.7% 0.137 41.8)
-
Step 600
600
#B84E1F
oklch(55.5% 0.149 41.8)
-
Step 700
700
#9E3E11
oklch(49% 0.139 41.6)
-
Step 800
800
#813412
oklch(42.7% 0.116 41.6)
-
Step 900
900
#682F17
oklch(37.8% 0.089 42.2)
-
Step 950
950
#3D1C0F
oklch(27% 0.056 41.6)
#C15F37 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) | #7A6E33 | 0.129 |
| Deuteranopia (no green cones) | #928335 | 0.117 |
| Tritanopia (no blue cones) | #D34B56 | 0.069 |
| Achromatopsia (no color) | #7B7B7B | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C15F37
#C15F37
oklch(59.7% 0.137 41.8)
- #008DAE
#008DAE
oklch(59.6% 0.11 222)
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 #C15F37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Terra Cotta #C9643B ΔE 0.020
- Terracotta #CA6641 ΔE 0.025
- Adobe #BD6C48 ΔE 0.029
- Rust Orange #C45508 ΔE 0.029
- Copper #B66325 ΔE 0.029
- Terracota #CB6843 ΔE 0.030
- Rusty Orange #CD5909 ΔE 0.031
- Clay #B66A50 ΔE 0.033
Use #C15F37 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.