#ED423F
Closest named color: Imperial Red (#E63946). oklch(63.1% 0.208 26.3), rgb(237, 66, 63).
Aa
Black text reads best on this color (5.45:1).
About this color
#ED423F is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.208 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Imperial Red (#E63946), ΔE 0.024 away. Black text reads best on it, at 5.45:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.208) |
| Temperature | warm |
| Nearest name | Imperial Red (#E63946) |
| Black text | 5.45:1 |
| White text | 3.85:1 |
Values
| HEX | #ED423F |
| RGB | rgb(237, 66, 63) |
| HSL | hsl(1, 83%, 59%) |
| OKLCH | oklch(63.1% 0.208 26.3) |
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 #ED423F | 3.85:1 | AA large text | Lc -70.1 | Content text, not long reading |
| Black text on #ED423F | 5.45:1 | AA | Lc 39.5 | Non-text elements, placeholder text |
| #ED423F text on white | 3.85:1 | AA large text | Lc 64.6 | Content text, not long reading |
| #ED423F text on black | 5.45:1 | AA | Lc -37.1 | 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 500.
-
Step 50
50
#FFF2F1
oklch(97.1% 0.014 22.8)
-
Step 100
100
#FDE3E0
oklch(93.6% 0.029 25.6)
-
Step 200
200
#FDCCC6
oklch(88.6% 0.056 26.4)
-
Step 300
300
#FCA79E
oklch(80.9% 0.102 26.2)
-
Step 400
400
#F57269
oklch(70.6% 0.163 26)
-
Step 500
500 (this color)
#ED423F
oklch(63.1% 0.208 26.3)
-
Step 600
600
#D8001C
oklch(55.5% 0.226 26.3)
-
Step 700
700
#B70016
oklch(49.1% 0.2 26.3)
-
Step 800
800
#980010
oklch(42.8% 0.174 26.3)
-
Step 900
900
#7A1415
oklch(37.7% 0.136 26.4)
-
Step 950
950
#480F0E
oklch(27% 0.086 25.9)
#ED423F 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) | #746A3D | 0.225 |
| Deuteranopia (no green cones) | #9F8F39 | 0.204 |
| Tritanopia (no blue cones) | #FF0043 | 0.052 |
| Achromatopsia (no color) | #828282 | 0.210 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #ED423F
#ED423F
oklch(63.1% 0.208 26.3)
- #009BAA
#009BAA
oklch(63% 0.108 206.9)
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 #ED423F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Imperial Red #E63946 ΔE 0.024
- Vermillion #F4320C ΔE 0.033
- Orangey Red #FA4224 ΔE 0.033
- Red Pantone #EF233C ΔE 0.033
- Strawberry #FB2943 ΔE 0.035
- Tomato Red #EC2D01 ΔE 0.038
- Light Red #FF474C ΔE 0.039
- Pinky Red #FC2647 ΔE 0.039
Use #ED423F 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.