#CB011F
Closest named color: Cherry (#CF0234). oklch(53.1% 0.215 25.3), rgb(203, 1, 31).
Aa
White text reads best on this color (5.89:1).
About this color
#CB011F is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.215 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.021 away. White text reads best on it, at 5.89:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.215) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.56:1 |
| White text | 5.89:1 |
Values
| HEX | #CB011F |
| RGB | rgb(203, 1, 31) |
| HSL | hsl(351, 99%, 40%) |
| OKLCH | oklch(53.1% 0.215 25.3) |
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 #CB011F | 5.89:1 | AA | Lc -82.0 | Fine for body text |
| Black text on #CB011F | 3.56:1 | AA large text | Lc 27.4 | Dividers and decoration only |
| #CB011F text on white | 5.89:1 | AA | Lc 76.7 | Fine for body text |
| #CB011F text on black | 3.56:1 | AA large text | Lc -25.1 | Dividers and decoration only |
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 600.
-
Step 50
50
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE3E0
oklch(93.5% 0.028 25.9)
-
Step 200
200
#FBCCC7
oklch(88.5% 0.054 25.3)
-
Step 300
300
#F9A8A1
oklch(80.9% 0.097 24.9)
-
Step 400
400
#F2756E
oklch(70.7% 0.155 25.1)
-
Step 500
500
#E94847
oklch(63.1% 0.198 25.2)
-
Step 600
600 (this color)
#CB011F
oklch(53.1% 0.215 25.3)
-
Step 700
700
#B7001B
oklch(49.1% 0.199 25.2)
-
Step 800
800
#950D18
oklch(42.7% 0.166 25.4)
-
Step 900
900
#77191A
oklch(37.6% 0.128 25.5)
-
Step 950
950
#461110
oklch(26.9% 0.081 25.4)
#CB011F 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) | #544B1D | 0.238 |
| Deuteranopia (no green cones) | #807212 | 0.215 |
| Tritanopia (no blue cones) | #E00014 | 0.044 |
| Achromatopsia (no color) | #646464 | 0.217 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CB011F
#CB011F
oklch(53.1% 0.215 25.3)
- #007B85
#007B85
oklch(53.2% 0.091 204.8)
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 #CB011F, closest first.
No curated palette has a color within ΔE 0.04 of #CB011F.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.021
- Scarlet #BE0119 ΔE 0.028
- Lipstick Red #C0022F ΔE 0.028
- Rose Red #BE013C ΔE 0.042
- Ruby #CA0147 ΔE 0.044
- Crimson #DC143C ΔE 0.046
- Firebrick #B22222 ΔE 0.049
- Lipstick #D5174E ΔE 0.054
Use #CB011F 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.