#CB3040
Closest named color: Cherry (#CF0234). oklch(55.7% 0.19 20.8), rgb(203, 48, 64).
Aa
White text reads best on this color (5.20:1).
About this color
#CB3040 is a medium-dark, vivid red. In OKLCH its lightness is 56%, its chroma 0.190 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.031 away. White text reads best on it, at 5.20:1.
| Hue family | Reds |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.190) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 4.03:1 |
| White text | 5.20:1 |
Values
| HEX | #CB3040 |
| RGB | rgb(203, 48, 64) |
| HSL | hsl(354, 62%, 49%) |
| OKLCH | oklch(55.7% 0.19 20.8) |
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 #CB3040 | 5.20:1 | AA | Lc -79.7 | Fine for body text |
| Black text on #CB3040 | 4.03:1 | AA large text | Lc 29.7 | Dividers and decoration only |
| #CB3040 text on white | 5.20:1 | AA | Lc 74.3 | Content text, not long reading |
| #CB3040 text on black | 4.03:1 | AA large text | Lc -27.4 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#FAE4E3
oklch(93.6% 0.024 20.7)
-
Step 200
200
#F7CDCC
oklch(88.4% 0.048 19.7)
-
Step 300
300
#F3ABA9
oklch(80.9% 0.085 20.9)
-
Step 400
400
#E97B7B
oklch(70.7% 0.136 21.1)
-
Step 500
500
#DF535A
oklch(63.1% 0.175 20.8)
-
Step 600
600 (this color)
#CB3040
oklch(55.7% 0.19 20.8)
-
Step 700
700
#AF1F32
oklch(49.1% 0.177 20.7)
-
Step 800
800
#8E1E2A
oklch(42.7% 0.147 20.7)
-
Step 900
900
#722126
oklch(37.7% 0.113 21)
-
Step 950
950
#431517
oklch(27% 0.071 20.7)
#CB3040 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) | #5E583F | 0.209 |
| Deuteranopia (no green cones) | #85793B | 0.192 |
| Tritanopia (no blue cones) | #DF0037 | 0.042 |
| Achromatopsia (no color) | #6D6D6D | 0.192 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CB3040
#CB3040
oklch(55.7% 0.19 20.8)
- #00848A
#00848A
oklch(55.8% 0.095 200.4)
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 #CB3040, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.031
- Dull Red #BB3F3F ΔE 0.034
- Crimson #DC143C ΔE 0.035
- Lipstick #D5174E ΔE 0.036
- Ruby #CA0147 ΔE 0.041
- Dusty Red #B9484E ΔE 0.044
- Faded Red #D3494E ΔE 0.044
- Lipstick Red #C0022F ΔE 0.048
Use #CB3040 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.