#E12521
Closest named color: Tomato Red (#EC2D01). oklch(58.5% 0.221 28.2), rgb(225, 37, 33).
Aa
White text reads best on this color (4.67:1).
About this color
#E12521 is a medium-dark, vivid red. In OKLCH its lightness is 59%, its chroma 0.221 and its hue 28°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato Red (#EC2D01), ΔE 0.029 away. White text reads best on it, at 4.67:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.221) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 4.48:1 |
| White text | 4.67:1 |
Values
| HEX | #E12521 |
| RGB | rgb(225, 37, 33) |
| HSL | hsl(1, 76%, 51%) |
| OKLCH | oklch(58.5% 0.221 28.2) |
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 #E12521 | 4.67:1 | AA | Lc -76.0 | Fine for body text |
| Black text on #E12521 | 4.48:1 | AA large text | Lc 33.6 | Non-text elements, placeholder text |
| #E12521 text on white | 4.67:1 | AA | Lc 70.5 | Content text, not long reading |
| #E12521 text on black | 4.48:1 | AA large text | Lc -31.2 | 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FDE3DF
oklch(93.6% 0.029 28.1)
-
Step 200
200
#FCCCC5
oklch(88.5% 0.056 27.9)
-
Step 300
300
#FAA89D
oklch(80.9% 0.099 27.8)
-
Step 400
400
#F37466
oklch(70.6% 0.159 28.2)
-
Step 500
500
#EB463B
oklch(63.1% 0.203 28.2)
-
Step 600
600 (this color)
#E12521
oklch(58.5% 0.221 28.2)
-
Step 700
700
#B80009
oklch(49.2% 0.201 28.2)
-
Step 800
800
#96080B
oklch(42.6% 0.17 28.1)
-
Step 900
900
#791713
oklch(37.7% 0.133 28)
-
Step 950
950
#47110D
oklch(27% 0.083 28.2)
#E12521 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) | #655A1D | 0.240 |
| Deuteranopia (no green cones) | #928213 | 0.217 |
| Tritanopia (no blue cones) | #F80028 | 0.045 |
| Achromatopsia (no color) | #747474 | 0.222 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E12521
#E12521
oklch(58.5% 0.221 28.2)
- #008C9B
#008C9B
oklch(58.5% 0.101 208)
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 #E12521, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.029
- Crimson #DC143C ΔE 0.034
- Red Pantone #EF233C ΔE 0.036
- Imperial Red #E63946 ΔE 0.037
- Cherry Red #F7022A ΔE 0.043
- Vermillion #F4320C ΔE 0.045
- Faded Red #D3494E ΔE 0.053
- Cherry #CF0234 ΔE 0.054
Use #E12521 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.