#C3663F
Closest named color: Terra Cotta (#C9643B). oklch(61.1% 0.13 42.6), rgb(195, 102, 63).
Aa
Black text reads best on this color (5.29:1).
About this color
#C3663F is a medium-dark, moderately saturated brown. In OKLCH its lightness is 61%, its chroma 0.130 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Terra Cotta (#C9643B), ΔE 0.011 away. Black text reads best on it, at 5.29:1.
| Hue family | Browns |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.130) |
| Temperature | warm |
| Nearest name | Terra Cotta (#C9643B) |
| Black text | 5.29:1 |
| White text | 3.96:1 |
Values
| HEX | #C3663F |
| RGB | rgb(195, 102, 63) |
| HSL | hsl(18, 52%, 51%) |
| OKLCH | oklch(61.1% 0.13 42.6) |
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 #C3663F | 3.96:1 | AA large text | Lc -72.1 | Content text, not long reading |
| Black text on #C3663F | 5.29:1 | AA | Lc 37.5 | Non-text elements, placeholder text |
| #C3663F text on white | 3.96:1 | AA large text | Lc 66.6 | Content text, not long reading |
| #C3663F text on black | 5.29:1 | AA | Lc -35.1 | 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
#F5E6E0
oklch(93.5% 0.018 43.2)
-
Step 200
200
#EFD2C7
oklch(88.5% 0.036 41.9)
-
Step 300
300
#E5B4A0
oklch(80.9% 0.064 43.3)
-
Step 400
400
#D68B6D
oklch(70.7% 0.101 42.5)
-
Step 500
500 (this color)
#C3663F
oklch(61.1% 0.13 42.6)
-
Step 600
600
#B55124
oklch(55.5% 0.142 42.5)
-
Step 700
700
#9B4117
oklch(49% 0.131 42.4)
-
Step 800
800
#7E3716
oklch(42.7% 0.108 43.1)
-
Step 900
900
#663019
oklch(37.7% 0.085 42.6)
-
Step 950
950
#3C1D10
oklch(27.1% 0.053 42.9)
#C3663F 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) | #7F733B | 0.121 |
| Deuteranopia (no green cones) | #96883D | 0.112 |
| Tritanopia (no blue cones) | #D5545D | 0.068 |
| Achromatopsia (no color) | #808080 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C3663F
#C3663F
oklch(61.1% 0.13 42.6)
- #0092B5
#0092B5
oklch(61.2% 0.114 222.7)
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 #C3663F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Terra Cotta #C9643B ΔE 0.011
- Terracotta #CA6641 ΔE 0.013
- Adobe #BD6C48 ΔE 0.016
- Terracota #CB6843 ΔE 0.017
- Clay #B66A50 ΔE 0.027
- Tiger's Eye #BC6C25 ΔE 0.033
- Copper #B66325 ΔE 0.035
- Rusty Orange #CD5909 ΔE 0.038
Use #C3663F 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.