#CF5B31
Closest named color: Terra Cotta (#C9643B). oklch(61.1% 0.158 39.5), rgb(207, 91, 49).
Aa
Black text reads best on this color (5.19:1).
About this color
#CF5B31 is a medium-dark, vivid red. In OKLCH its lightness is 61%, its chroma 0.158 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Terra Cotta (#C9643B), ΔE 0.019 away. Black text reads best on it, at 5.19:1.
| Hue family | Reds |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.158) |
| Temperature | warm |
| Nearest name | Terra Cotta (#C9643B) |
| Black text | 5.19:1 |
| White text | 4.04:1 |
Values
| HEX | #CF5B31 |
| RGB | rgb(207, 91, 49) |
| HSL | hsl(16, 62%, 50%) |
| OKLCH | oklch(61.1% 0.158 39.5) |
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 #CF5B31 | 4.04:1 | AA large text | Lc -72.5 | Content text, not long reading |
| Black text on #CF5B31 | 5.19:1 | AA | Lc 37.1 | Non-text elements, placeholder text |
| #CF5B31 text on white | 4.04:1 | AA large text | Lc 67.0 | Content text, not long reading |
| #CF5B31 text on black | 5.19:1 | 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
#FCF3F0
oklch(97% 0.011 39.4)
-
Step 100
100
#F8E5DF
oklch(93.5% 0.022 38.3)
-
Step 200
200
#F3D0C4
oklch(88.4% 0.043 39.8)
-
Step 300
300
#EDB09C
oklch(80.9% 0.077 38.9)
-
Step 400
400
#E18464
oklch(70.6% 0.123 39.7)
-
Step 500
500 (this color)
#CF5B31
oklch(61.1% 0.158 39.5)
-
Step 600
600
#C2440B
oklch(55.7% 0.171 39.5)
-
Step 700
700
#A53600
oklch(49% 0.155 39.6)
-
Step 800
800
#872D04
oklch(42.7% 0.131 39.9)
-
Step 900
900
#6D2A10
oklch(37.8% 0.103 40)
-
Step 950
950
#40190B
oklch(26.9% 0.065 39.7)
#CF5B31 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) | #7B6E2C | 0.154 |
| Deuteranopia (no green cones) | #98882E | 0.140 |
| Tritanopia (no blue cones) | #E34152 | 0.073 |
| Achromatopsia (no color) | #7E7E7E | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CF5B31
#CF5B31
oklch(61.1% 0.158 39.5)
- #0092B1
#0092B1
oklch(61% 0.111 219.9)
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 #CF5B31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Terra Cotta #C9643B ΔE 0.019
- Rusty Orange #CD5909 ΔE 0.022
- Terracotta #CA6641 ΔE 0.023
- Terracota #CB6843 ΔE 0.027
- Deep Orange #DC4D01 ΔE 0.033
- Rust Orange #C45508 ΔE 0.034
- Chocolate #D2691E ΔE 0.038
- Pale Red #D9544D ΔE 0.041
Use #CF5B31 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.