#E74733
Closest named color: Vermillion (#F4320C). oklch(62.4% 0.2 30.5), rgb(231, 71, 51).
Aa
Black text reads best on this color (5.34:1).
About this color
#E74733 is a medium-light, vivid red. In OKLCH its lightness is 62%, its chroma 0.200 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Vermillion (#F4320C), ΔE 0.032 away. Black text reads best on it, at 5.34:1.
| Hue family | Reds |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.200) |
| Temperature | warm |
| Nearest name | Vermillion (#F4320C) |
| Black text | 5.34:1 |
| White text | 3.92:1 |
Values
| HEX | #E74733 |
| RGB | rgb(231, 71, 51) |
| HSL | hsl(7, 79%, 55%) |
| OKLCH | oklch(62.4% 0.2 30.5) |
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 #E74733 | 3.92:1 | AA large text | Lc -70.9 | Content text, not long reading |
| Black text on #E74733 | 5.34:1 | AA | Lc 38.7 | Non-text elements, placeholder text |
| #E74733 text on white | 3.92:1 | AA large text | Lc 65.4 | Content text, not long reading |
| #E74733 text on black | 5.34:1 | AA | Lc -36.2 | 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 500.
-
Step 50
50
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FCE3DF
oklch(93.5% 0.028 28.5)
-
Step 200
200
#FBCDC4
oklch(88.6% 0.054 31)
-
Step 300
300
#F9A99B
oklch(80.9% 0.097 30.3)
-
Step 400
400
#F27663
oklch(70.7% 0.156 30.4)
-
Step 500
500 (this color)
#E74733
oklch(62.4% 0.2 30.5)
-
Step 600
600
#D51B04
oklch(55.6% 0.217 30.6)
-
Step 700
700
#B51200
oklch(49.1% 0.194 30.6)
-
Step 800
800
#950F01
oklch(42.7% 0.167 30.7)
-
Step 900
900
#781A0F
oklch(37.8% 0.13 30.5)
-
Step 950
950
#47120B
oklch(27.1% 0.082 30.6)
#E74733 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) | #766A2F | 0.211 |
| Deuteranopia (no green cones) | #9E8D2C | 0.192 |
| Tritanopia (no blue cones) | #FE0344 | 0.068 |
| Achromatopsia (no color) | #808080 | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E74733
#E74733
oklch(62.4% 0.2 30.5)
- #0098AC
#0098AC
oklch(62.3% 0.108 211)
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 #E74733, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vermillion #F4320C ΔE 0.032
- Tomato Red #EC2D01 ΔE 0.033
- Imperial Red #E63946 ΔE 0.033
- Pale Red #D9544D ΔE 0.034
- Orangey Red #FA4224 ΔE 0.036
- Deep Orange #DC4D01 ΔE 0.037
- Pastel Red #DB5856 ΔE 0.041
- Red Orange #FD3C06 ΔE 0.043
Use #E74733 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.