#EC4817
Closest named color: Vermillion (#F4320C). oklch(63.2% 0.208 35.5), rgb(236, 72, 23).
Aa
Black text reads best on this color (5.50:1).
About this color
#EC4817 is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.208 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Vermillion (#F4320C), ΔE 0.027 away. Black text reads best on it, at 5.50:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.208) |
| Temperature | warm |
| Nearest name | Vermillion (#F4320C) |
| Black text | 5.50:1 |
| White text | 3.81:1 |
Values
| HEX | #EC4817 |
| RGB | rgb(236, 72, 23) |
| HSL | hsl(14, 85%, 51%) |
| OKLCH | oklch(63.2% 0.208 35.5) |
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 #EC4817 | 3.81:1 | AA large text | Lc -69.8 | Content text, not long reading |
| Black text on #EC4817 | 5.50:1 | AA | Lc 39.8 | Non-text elements, placeholder text |
| #EC4817 text on white | 3.81:1 | AA large text | Lc 64.3 | Content text, not long reading |
| #EC4817 text on black | 5.50:1 | AA | Lc -37.4 | 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
#FEF2EF
oklch(97% 0.014 34.3)
-
Step 100
100
#FDE3DD
oklch(93.5% 0.03 33.1)
-
Step 200
200
#FCCDC0
oklch(88.6% 0.056 36)
-
Step 300
300
#FBA993
oklch(80.9% 0.102 35.7)
-
Step 400
400
#F47655
oklch(70.7% 0.162 35.7)
-
Step 500
500 (this color)
#EC4817
oklch(63.2% 0.208 35.5)
-
Step 600
600
#CB3500
oklch(55.6% 0.193 35.4)
-
Step 700
700
#AC2C00
oklch(49.2% 0.17 35.6)
-
Step 800
800
#8E2200
oklch(42.7% 0.148 35.4)
-
Step 900
900
#771B00
oklch(37.6% 0.131 35.4)
-
Step 950
950
#471104
oklch(26.9% 0.085 35.3)
#EC4817 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) | #7A6B09 | 0.215 |
| Deuteranopia (no green cones) | #A29004 | 0.195 |
| Tritanopia (no blue cones) | #FF0040 | 0.075 |
| Achromatopsia (no color) | #838383 | 0.209 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EC4817
#EC4817
oklch(63.2% 0.208 35.5)
- #009AB4
#009AB4
oklch(63.2% 0.112 215.3)
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 #EC4817, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vermillion #F4320C ΔE 0.027
- Orangey Red #FA4224 ΔE 0.028
- Red Orange #FD3C06 ΔE 0.032
- Deep Orange #DC4D01 ΔE 0.032
- Tomato Red #EC2D01 ΔE 0.033
- Orangered #FE420F ΔE 0.033
- Orange Red #FF4500 ΔE 0.036
- Blood Orange #FE4B03 ΔE 0.036
Use #EC4817 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.