#EF4615
Closest named color: Orangey Red (#FA4224). oklch(63.5% 0.213 35.1), rgb(239, 70, 21).
Aa
Black text reads best on this color (5.55:1).
About this color
#EF4615 is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.213 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Orangey Red (#FA4224), ΔE 0.023 away. Black text reads best on it, at 5.55:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.213) |
| Temperature | warm |
| Nearest name | Orangey Red (#FA4224) |
| Black text | 5.55:1 |
| White text | 3.77:1 |
Values
| HEX | #EF4615 |
| RGB | rgb(239, 70, 21) |
| HSL | hsl(13, 87%, 51%) |
| OKLCH | oklch(63.5% 0.213 35.1) |
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 #EF4615 | 3.77:1 | AA large text | Lc -69.4 | Content text, not long reading |
| Black text on #EF4615 | 5.55:1 | AA | Lc 40.2 | Non-text elements, placeholder text |
| #EF4615 text on white | 3.77:1 | AA large text | Lc 63.9 | Content text, not long reading |
| #EF4615 text on black | 5.55:1 | AA | Lc -37.8 | 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
#FFF2EF
oklch(97.1% 0.015 33.1)
-
Step 100
100
#FDE3DD
oklch(93.5% 0.03 33.1)
-
Step 200
200
#FDCCC0
oklch(88.5% 0.058 34.1)
-
Step 300
300
#FCA893
oklch(80.9% 0.104 34.7)
-
Step 400
400
#F67454
oklch(70.7% 0.167 35)
-
Step 500
500 (this color)
#EF4615
oklch(63.5% 0.213 35.1)
-
Step 600
600
#CC3400
oklch(55.7% 0.195 35.1)
-
Step 700
700
#AC2A00
oklch(49% 0.172 35)
-
Step 800
800
#8E2100
oklch(42.6% 0.149 35.1)
-
Step 900
900
#781A00
oklch(37.7% 0.132 34.9)
-
Step 950
950
#481003
oklch(27% 0.088 35.2)
#EF4615 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) | #7A6B05 | 0.221 |
| Deuteranopia (no green cones) | #A39100 | 0.200 |
| Tritanopia (no blue cones) | #FF003E | 0.070 |
| Achromatopsia (no color) | #838383 | 0.214 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF4615
#EF4615
oklch(63.5% 0.213 35.1)
- #009BB5
#009BB5
oklch(63.5% 0.112 215.2)
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 #EF4615, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Orangey Red #FA4224 ΔE 0.023
- Vermillion #F4320C ΔE 0.024
- Red Orange #FD3C06 ΔE 0.026
- Orangered #FE420F ΔE 0.028
- Orange Red #FF4500 ΔE 0.031
- Blood Orange #FE4B03 ΔE 0.032
- Tomato Red #EC2D01 ΔE 0.032
- Deep Orange #DC4D01 ΔE 0.037
Use #EF4615 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.