#E7021E
Closest named color: Crimson (#DC143C). oklch(58.4% 0.237 26.5), rgb(231, 2, 30).
Aa
White text reads best on this color (4.74:1).
About this color
#E7021E is a medium-dark, vivid red. In OKLCH its lightness is 58%, its chroma 0.237 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Crimson (#DC143C), ΔE 0.032 away. White text reads best on it, at 4.74:1.
| Hue family | Reds |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.237) |
| Temperature | warm |
| Nearest name | Crimson (#DC143C) |
| Black text | 4.42:1 |
| White text | 4.74:1 |
Values
| HEX | #E7021E |
| RGB | rgb(231, 2, 30) |
| HSL | hsl(353, 98%, 46%) |
| OKLCH | oklch(58.4% 0.237 26.5) |
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 #E7021E | 4.74:1 | AA | Lc -75.5 | Fine for body text |
| Black text on #E7021E | 4.42:1 | AA large text | Lc 34.1 | Non-text elements, placeholder text |
| #E7021E text on white | 4.74:1 | AA | Lc 70.0 | Content text, not long reading |
| #E7021E text on black | 4.42:1 | AA large text | Lc -31.6 | 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
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FEE3DF
oklch(93.7% 0.03 27.8)
-
Step 200
200
#FECBC5
oklch(88.5% 0.059 26.1)
-
Step 300
300
#FEA69C
oklch(81% 0.106 26.7)
-
Step 400
400
#F96F65
oklch(70.7% 0.171 26.5)
-
Step 500
500
#F13B3A
oklch(63.1% 0.218 26.4)
-
Step 600
600 (this color)
#E7021E
oklch(58.4% 0.237 26.5)
-
Step 700
700
#B70015
oklch(49% 0.2 26.4)
-
Step 800
800
#98000F
oklch(42.8% 0.174 26.5)
-
Step 900
900
#7C0E12
oklch(37.7% 0.142 26.3)
-
Step 950
950
#490D0C
oklch(26.9% 0.09 26.4)
#E7021E 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) | #61561A | 0.262 |
| Deuteranopia (no green cones) | #93820A | 0.235 |
| Tritanopia (no blue cones) | #FF0016 | 0.049 |
| Achromatopsia (no color) | #737373 | 0.239 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E7021E
#E7021E
oklch(58.4% 0.237 26.5)
- #008C99
#008C99
oklch(58.5% 0.1 206.3)
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 #E7021E, closest first.
No curated palette has a color within ΔE 0.04 of #E7021E.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Crimson #DC143C ΔE 0.032
- Red Pantone #EF233C ΔE 0.033
- Cherry Red #F7022A ΔE 0.034
- Tomato Red #EC2D01 ΔE 0.035
- Imperial Red #E63946 ΔE 0.043
- Fire Engine Red #FE0002 ΔE 0.048
- Vermillion #F4320C ΔE 0.048
- Bright Red #FF000D ΔE 0.049
Use #E7021E 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.