#E0150B
Closest named color: Tomato Red (#EC2D01). oklch(57.5% 0.228 29.4), rgb(224, 21, 11).
Aa
White text reads best on this color (4.90:1).
About this color
#E0150B is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.228 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato Red (#EC2D01), ΔE 0.036 away. White text reads best on it, at 4.90:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.228) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 4.28:1 |
| White text | 4.90:1 |
Values
| HEX | #E0150B |
| RGB | rgb(224, 21, 11) |
| HSL | hsl(3, 91%, 46%) |
| OKLCH | oklch(57.5% 0.228 29.4) |
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 #E0150B | 4.90:1 | AA | Lc -77.0 | Fine for body text |
| Black text on #E0150B | 4.28:1 | AA large text | Lc 32.6 | Non-text elements, placeholder text |
| #E0150B text on white | 4.90:1 | AA | Lc 71.5 | Content text, not long reading |
| #E0150B text on black | 4.28:1 | AA large text | Lc -30.1 | 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
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FDE3DE
oklch(93.6% 0.03 30.6)
-
Step 200
200
#FDCCC3
oklch(88.5% 0.057 30.3)
-
Step 300
300
#FCA79A
oklch(80.9% 0.103 29)
-
Step 400
400
#F67361
oklch(70.8% 0.164 29.7)
-
Step 500
500
#EE4233
oklch(63.1% 0.211 29.3)
-
Step 600
600 (this color)
#E0150B
oklch(57.5% 0.228 29.4)
-
Step 700
700
#B70300
oklch(49% 0.2 29.4)
-
Step 800
800
#980200
oklch(42.8% 0.174 29.4)
-
Step 900
900
#7A150D
oklch(37.7% 0.137 29.6)
-
Step 950
950
#480F0A
oklch(26.9% 0.087 29.1)
#E0150B 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) | #615501 | 0.250 |
| Deuteranopia (no green cones) | #907F00 | 0.221 |
| Tritanopia (no blue cones) | #F80019 | 0.048 |
| Achromatopsia (no color) | #717171 | 0.230 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E0150B
#E0150B
oklch(57.5% 0.228 29.4)
- #008899
#008899
oklch(57.4% 0.099 210.1)
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 #E0150B, closest first.
No curated palette has a color within ΔE 0.04 of #E0150B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.036
- Crimson #DC143C ΔE 0.037
- Red Pantone #EF233C ΔE 0.046
- Cherry Red #F7022A ΔE 0.049
- Cherry #CF0234 ΔE 0.050
- Imperial Red #E63946 ΔE 0.050
- Vermillion #F4320C ΔE 0.053
- Fire Engine Red #FE0002 ΔE 0.059
Use #E0150B 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.