#C1663F
Closest named color: Terra Cotta (#C9643B). oklch(60.9% 0.128 43), rgb(193, 102, 63).
Aa
Black text reads best on this color (5.23:1).
About this color
#C1663F is a medium-dark, moderately saturated brown. In OKLCH its lightness is 61%, its chroma 0.128 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Terra Cotta (#C9643B), ΔE 0.014 away. Black text reads best on it, at 5.23:1.
| Hue family | Browns |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.128) |
| Temperature | warm |
| Nearest name | Terra Cotta (#C9643B) |
| Black text | 5.23:1 |
| White text | 4.00:1 |
Values
| HEX | #C1663F |
| RGB | rgb(193, 102, 63) |
| HSL | hsl(18, 51%, 50%) |
| OKLCH | oklch(60.9% 0.128 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 #C1663F | 4.00:1 | AA large text | Lc -72.5 | Content text, not long reading |
| Black text on #C1663F | 5.23:1 | AA | Lc 37.1 | Non-text elements, placeholder text |
| #C1663F text on white | 4.00:1 | AA large text | Lc 67.0 | Content text, not long reading |
| #C1663F text on black | 5.23:1 | AA | Lc -34.7 | 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 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
#EED2C7
oklch(88.4% 0.035 42.7)
-
Step 300
300
#E5B4A1
oklch(80.9% 0.063 42.2)
-
Step 400
400
#D58C6D
oklch(70.7% 0.1 43.7)
-
Step 500
500 (this color)
#C1663F
oklch(60.9% 0.128 43)
-
Step 600
600
#B45226
oklch(55.5% 0.14 42.7)
-
Step 700
700
#9B4218
oklch(49.1% 0.13 42.7)
-
Step 800
800
#7E3717
oklch(42.7% 0.108 42.7)
-
Step 900
900
#65311A
oklch(37.7% 0.083 43.4)
-
Step 950
950
#3C1D10
oklch(27.1% 0.053 42.9)
#C1663F 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 | 0.118 |
| Deuteranopia (no green cones) | #95873E | 0.109 |
| Tritanopia (no blue cones) | #D3545D | 0.068 |
| Achromatopsia (no color) | #7F7F7F | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C1663F
#C1663F
oklch(60.9% 0.128 43)
- #0091B4
#0091B4
oklch(60.9% 0.113 222.8)
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 #C1663F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Terra Cotta #C9643B ΔE 0.014
- Adobe #BD6C48 ΔE 0.015
- Terracotta #CA6641 ΔE 0.017
- Terracota #CB6843 ΔE 0.020
- Clay #B66A50 ΔE 0.025
- Tiger's Eye #BC6C25 ΔE 0.032
- Copper #B66325 ΔE 0.032
- Clay Brown #B2713D ΔE 0.037
Use #C1663F 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.