#EC503B
Closest named color: Orangey Red (#FA4224). oklch(64.3% 0.196 30.7), rgb(236, 80, 59).
Aa
Black text reads best on this color (5.77:1).
About this color
#EC503B is a medium-light, vivid red. In OKLCH its lightness is 64%, its chroma 0.196 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Orangey Red (#FA4224), ΔE 0.030 away. Black text reads best on it, at 5.77:1.
| Hue family | Reds |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.196) |
| Temperature | warm |
| Nearest name | Orangey Red (#FA4224) |
| Black text | 5.77:1 |
| White text | 3.63:1 |
Values
| HEX | #EC503B |
| RGB | rgb(236, 80, 59) |
| HSL | hsl(7, 82%, 58%) |
| OKLCH | oklch(64.3% 0.196 30.7) |
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 #EC503B | 3.63:1 | AA large text | Lc -68.3 | Content text, not long reading |
| Black text on #EC503B | 5.77:1 | AA | Lc 41.2 | Non-text elements, placeholder text |
| #EC503B text on white | 3.63:1 | AA large text | Lc 62.8 | Content text, not long reading |
| #EC503B text on black | 5.77:1 | AA | Lc -38.9 | 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
#FEF3F0
oklch(97.2% 0.013 35.7)
-
Step 100
100
#FCE4DF
oklch(93.7% 0.027 31.7)
-
Step 200
200
#FACDC4
oklch(88.5% 0.053 31.3)
-
Step 300
300
#F8AA9B
oklch(81% 0.095 31.3)
-
Step 400
400
#F17764
oklch(70.7% 0.154 30.5)
-
Step 500
500 (this color)
#EC503B
oklch(64.3% 0.196 30.7)
-
Step 600
600
#D3210A
oklch(55.6% 0.212 30.8)
-
Step 700
700
#B51300
oklch(49.2% 0.193 30.7)
-
Step 800
800
#941304
oklch(42.7% 0.164 30.7)
-
Step 900
900
#771B10
oklch(37.7% 0.128 30.6)
-
Step 950
950
#46120B
oklch(26.9% 0.081 30.7)
#EC503B 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) | #7C7038 | 0.205 |
| Deuteranopia (no green cones) | #A39335 | 0.188 |
| Tritanopia (no blue cones) | #FF214C | 0.066 |
| Achromatopsia (no color) | #868686 | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EC503B
#EC503B
oklch(64.3% 0.196 30.7)
- #009FB3
#009FB3
oklch(64.4% 0.112 210.4)
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 #EC503B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Orangey Red #FA4224 ΔE 0.030
- Pale Red #D9544D ΔE 0.038
- Orangered #FE420F ΔE 0.039
- Pastel Red #DB5856 ΔE 0.039
- Vermillion #F4320C ΔE 0.040
- Red Orange #FD3C06 ΔE 0.040
- Blood Orange #FE4B03 ΔE 0.041
- Orange Red #FF4500 ΔE 0.042
Use #EC503B 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.