#C45E37
Closest named color: Terra Cotta (#C9643B). oklch(59.9% 0.141 40.7), rgb(196, 94, 55).
Aa
Black text reads best on this color (5.00:1).
About this color
#C45E37 is a medium-dark, vivid orange. In OKLCH its lightness is 60%, its chroma 0.141 and its hue 41°. Its hue sits on the warm side of the wheel. The nearest named color is Terra Cotta (#C9643B), ΔE 0.017 away. Black text reads best on it, at 5.00:1.
| Hue family | Oranges |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.141) |
| Temperature | warm |
| Nearest name | Terra Cotta (#C9643B) |
| Black text | 5.00:1 |
| White text | 4.19:1 |
Values
| HEX | #C45E37 |
| RGB | rgb(196, 94, 55) |
| HSL | hsl(17, 56%, 49%) |
| OKLCH | oklch(59.9% 0.141 40.7) |
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 #C45E37 | 4.19:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #C45E37 | 5.00:1 | AA | Lc 35.7 | Non-text elements, placeholder text |
| #C45E37 text on white | 4.19:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #C45E37 text on black | 5.00:1 | AA | Lc -33.3 | 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
#F1D1C6
oklch(88.5% 0.039 39.9)
-
Step 300
300
#E8B29F
oklch(80.8% 0.069 40.2)
-
Step 400
400
#DB886A
oklch(70.7% 0.111 40.6)
-
Step 500
500 (this color)
#C45E37
oklch(59.9% 0.141 40.7)
-
Step 600
600
#BA4C1E
oklch(55.5% 0.153 40.7)
-
Step 700
700
#A03C0F
oklch(49% 0.143 40.7)
-
Step 800
800
#823311
oklch(42.7% 0.118 41.1)
-
Step 900
900
#692D17
oklch(37.7% 0.093 39.9)
-
Step 950
950
#3E1B0E
oklch(27% 0.059 40.5)
#C45E37 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 | 0.134 |
| Deuteranopia (no green cones) | #938435 | 0.123 |
| Tritanopia (no blue cones) | #D74955 | 0.069 |
| Achromatopsia (no color) | #7C7C7C | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C45E37
#C45E37
oklch(59.9% 0.141 40.7)
- #008EAE
#008EAE
oklch(59.9% 0.11 221.2)
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 #C45E37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Terra Cotta #C9643B ΔE 0.017
- Terracotta #CA6641 ΔE 0.023
- Terracota #CB6843 ΔE 0.028
- Rusty Orange #CD5909 ΔE 0.029
- Rust Orange #C45508 ΔE 0.029
- Adobe #BD6C48 ΔE 0.031
- Copper #B66325 ΔE 0.034
- Clay #B66A50 ΔE 0.037
Use #C45E37 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.