#E63128
Closest named color: Tomato Red (#EC2D01). oklch(60.3% 0.217 28.6), rgb(230, 49, 40).
Aa
Black text reads best on this color (4.83:1).
About this color
#E63128 is a medium-dark, vivid red. In OKLCH its lightness is 60%, its chroma 0.217 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato Red (#EC2D01), ΔE 0.019 away. Black text reads best on it, at 4.83:1.
| Hue family | Reds |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.217) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 4.83:1 |
| White text | 4.34:1 |
Values
| HEX | #E63128 |
| RGB | rgb(230, 49, 40) |
| HSL | hsl(3, 79%, 53%) |
| OKLCH | oklch(60.3% 0.217 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 #E63128 | 4.34:1 | AA large text | Lc -73.8 | Content text, not long reading |
| Black text on #E63128 | 4.83:1 | AA | Lc 35.7 | Non-text elements, placeholder text |
| #E63128 text on white | 4.34:1 | AA large text | Lc 68.3 | Content text, not long reading |
| #E63128 text on black | 4.83:1 | AA | Lc -33.3 | 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 500.
-
Step 50
50
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FEE3DE
oklch(93.6% 0.031 30.2)
-
Step 200
200
#FECBC3
oklch(88.5% 0.059 28.6)
-
Step 300
300
#FEA699
oklch(80.9% 0.107 28.8)
-
Step 400
400
#F87061
oklch(70.6% 0.17 28.5)
-
Step 500
500 (this color)
#E63128
oklch(60.3% 0.217 28.6)
-
Step 600
600
#D90008
oklch(55.6% 0.228 28.6)
-
Step 700
700
#B80006
oklch(49.2% 0.201 28.5)
-
Step 800
800
#980004
oklch(42.7% 0.175 28.5)
-
Step 900
900
#7C100C
oklch(37.7% 0.142 28.7)
-
Step 950
950
#490E0A
oklch(27% 0.089 28.5)
#E63128 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) | #6B6024 | 0.235 |
| Deuteranopia (no green cones) | #98871D | 0.212 |
| Tritanopia (no blue cones) | #FE0032 | 0.049 |
| Achromatopsia (no color) | #797979 | 0.219 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E63128
#E63128
oklch(60.3% 0.217 28.6)
- #0092A2
#0092A2
oklch(60.4% 0.104 208.4)
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 #E63128, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.019
- Imperial Red #E63946 ΔE 0.027
- Red Pantone #EF233C ΔE 0.029
- Vermillion #F4320C ΔE 0.031
- Cherry Red #F7022A ΔE 0.037
- Crimson #DC143C ΔE 0.045
- Fire Engine Red #FE0002 ΔE 0.046
- Bright Red #FF000D ΔE 0.048
Use #E63128 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.