#E10145
Closest named color: Crimson (#DC143C). oklch(57.7% 0.231 17), rgb(225, 1, 69).
Aa
White text reads best on this color (4.89:1).
About this color
#E10145 is a medium-dark, vivid red. In OKLCH its lightness is 58%, its chroma 0.231 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.016 away. White text reads best on it, at 4.89:1.
| Hue family | Reds |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.231) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.29:1 |
| White text | 4.89:1 |
Values
| HEX | #E10145 |
| RGB | rgb(225, 1, 69) |
| HSL | hsl(342, 99%, 44%) |
| OKLCH | oklch(57.7% 0.231 17) |
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 #E10145 | 4.89:1 | AA | Lc -76.6 | Fine for body text |
| Black text on #E10145 | 4.29:1 | AA large text | Lc 33.0 | Non-text elements, placeholder text |
| #E10145 text on white | 4.89:1 | AA | Lc 71.1 | Content text, not long reading |
| #E10145 text on black | 4.29:1 | AA large text | Lc -30.6 | 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
#FFF2F2
oklch(97.1% 0.014 17.4)
-
Step 100
100
#FEE2E3
oklch(93.6% 0.031 15.3)
-
Step 200
200
#FDCACB
oklch(88.4% 0.058 17)
-
Step 300
300
#FCA5A8
oklch(80.8% 0.103 17.3)
-
Step 400
400
#F66F7B
oklch(70.7% 0.166 16.9)
-
Step 500
500
#EE3C59
oklch(63.2% 0.212 17.1)
-
Step 600
600 (this color)
#E10145
oklch(57.7% 0.231 17)
-
Step 700
700
#B50036
oklch(49.1% 0.196 16.9)
-
Step 800
800
#96002B
oklch(42.7% 0.171 17)
-
Step 900
900
#7A1026
oklch(37.7% 0.138 16.8)
-
Step 950
950
#480D16
oklch(26.9% 0.088 17.1)
#E10145 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) | #5A5645 | 0.260 |
| Deuteranopia (no green cones) | #8C7F3E | 0.234 |
| Tritanopia (no blue cones) | #F80029 | 0.056 |
| Achromatopsia (no color) | #717171 | 0.233 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E10145
#E10145
oklch(57.7% 0.231 17)
- #008B8D
#008B8D
oklch(57.7% 0.098 196.6)
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 #E10145, closest first.
No curated palette has a color within ΔE 0.04 of #E10145.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.016
- Lipstick #D5174E ΔE 0.025
- Cerise #DE0C62 ΔE 0.039
- Cherry #CF0234 ΔE 0.041
- Red Pantone #EF233C ΔE 0.042
- Pink Red #F5054F ΔE 0.042
- Imperial Red #E63946 ΔE 0.046
- Ruby #CA0147 ΔE 0.048
Use #E10145 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.