#CB2921
Closest named color: Cherry (#CF0234). oklch(54.8% 0.198 28.6), rgb(203, 41, 33).
Aa
White text reads best on this color (5.41:1).
About this color
#CB2921 is a medium-dark, vivid red. In OKLCH its lightness is 55%, its chroma 0.198 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Cherry (#CF0234), ΔE 0.036 away. White text reads best on it, at 5.41:1.
| Hue family | Reds |
| Lightness | medium-dark (55%) |
| Chroma | vivid (0.198) |
| Temperature | warm |
| Nearest name | Cherry (#CF0234) |
| Black text | 3.87:1 |
| White text | 5.41:1 |
Values
| HEX | #CB2921 |
| RGB | rgb(203, 41, 33) |
| HSL | hsl(3, 72%, 46%) |
| OKLCH | oklch(54.8% 0.198 28.6) |
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 #CB2921 | 5.41:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #CB2921 | 3.87:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #CB2921 text on white | 5.41:1 | AA | Lc 75.3 | Fine for body text |
| #CB2921 text on black | 3.87:1 | AA large text | Lc -26.4 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FBE4E0
oklch(93.6% 0.026 29.4)
-
Step 200
200
#F8CEC7
oklch(88.6% 0.049 29.1)
-
Step 300
300
#F5ABA0
oklch(80.9% 0.089 28.6)
-
Step 400
400
#EC7A6C
oklch(70.6% 0.143 28.4)
-
Step 500
500
#E35244
oklch(63.2% 0.183 28.8)
-
Step 600
600 (this color)
#CB2921
oklch(54.8% 0.198 28.6)
-
Step 700
700
#B21C16
oklch(49.2% 0.185 28.7)
-
Step 800
800
#901C16
oklch(42.7% 0.152 28.6)
-
Step 900
900
#742019
oklch(37.8% 0.119 28.7)
-
Step 950
950
#44140F
oklch(26.9% 0.075 28.9)
#CB2921 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) | #5E531D | 0.214 |
| Deuteranopia (no green cones) | #857717 | 0.195 |
| Tritanopia (no blue cones) | #E0002A | 0.044 |
| Achromatopsia (no color) | #6A6A6A | 0.200 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CB2921
#CB2921
oklch(54.8% 0.198 28.6)
- #00808E
#00808E
oklch(54.9% 0.094 208.2)
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 #CB2921, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cherry #CF0234 ΔE 0.036
- Dull Red #BB3F3F ΔE 0.041
- Scarlet #BE0119 ΔE 0.044
- Sinopia #BB3E03 ΔE 0.045
- Crimson #DC143C ΔE 0.046
- Lipstick Red #C0022F ΔE 0.047
- Firebrick #B22222 ΔE 0.055
- Brick Orange #C14A09 ΔE 0.056
Use #CB2921 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.