#E42033
Closest named color: Crimson (#DC143C). oklch(59% 0.224 24), rgb(228, 32, 51).
Aa
White text reads best on this color (4.61:1).
About this color
#E42033 is a medium-dark, vivid red. In OKLCH its lightness is 59%, its chroma 0.224 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.024 away. White text reads best on it, at 4.61:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.224) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.55:1 |
| White text | 4.61:1 |
Values
| HEX | #E42033 |
| RGB | rgb(228, 32, 51) |
| HSL | hsl(354, 78%, 51%) |
| OKLCH | oklch(59% 0.224 24) |
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 #E42033 | 4.61:1 | AA | Lc -75.4 | Fine for body text |
| Black text on #E42033 | 4.55:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #E42033 text on white | 4.61:1 | AA | Lc 69.9 | Content text, not long reading |
| #E42033 text on black | 4.55:1 | AA | Lc -31.7 | 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 600.
-
Step 50
50
#FFF2F1
oklch(97.1% 0.014 22.8)
-
Step 100
100
#FDE3E0
oklch(93.6% 0.029 25.6)
-
Step 200
200
#FCCBC7
oklch(88.4% 0.056 23.7)
-
Step 300
300
#FBA7A1
oklch(80.9% 0.1 24)
-
Step 400
400
#F5726E
oklch(70.7% 0.162 23.8)
-
Step 500
500
#EC4247
oklch(63% 0.206 23.9)
-
Step 600
600 (this color)
#E42033
oklch(59% 0.224 24)
-
Step 700
700
#B70020
oklch(49.1% 0.199 24)
-
Step 800
800
#970019
oklch(42.6% 0.172 23.9)
-
Step 900
900
#79151B
oklch(37.7% 0.134 23.9)
-
Step 950
950
#480F10
oklch(27% 0.086 24.2)
#E42033 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) | #645B31 | 0.246 |
| Deuteranopia (no green cones) | #93832A | 0.223 |
| Tritanopia (no blue cones) | #FB002B | 0.043 |
| Achromatopsia (no color) | #757575 | 0.226 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E42033
#E42033
oklch(59% 0.224 24)
- #008E99
#008E99
oklch(59% 0.101 204.4)
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 #E42033, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.024
- Red Pantone #EF233C ΔE 0.024
- Imperial Red #E63946 ΔE 0.028
- Cherry Red #F7022A ΔE 0.036
- Tomato Red #EC2D01 ΔE 0.038
- Pink Red #F5054F ΔE 0.047
- Lipstick #D5174E ΔE 0.049
- Vermillion #F4320C ΔE 0.049
Use #E42033 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.