#EF612B
Closest named color: Orange Pant (#FB5607). oklch(66.7% 0.187 39.5), rgb(239, 97, 43).
Aa
Black text reads best on this color (6.41:1).
About this color
#EF612B is a medium-light, vivid red. In OKLCH its lightness is 67%, its chroma 0.187 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Orange Pant (#FB5607), ΔE 0.026 away. Black text reads best on it, at 6.41:1.
| Hue family | Reds |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.187) |
| Temperature | warm |
| Nearest name | Orange Pant (#FB5607) |
| Black text | 6.41:1 |
| White text | 3.27:1 |
Values
| HEX | #EF612B |
| RGB | rgb(239, 97, 43) |
| HSL | hsl(17, 86%, 55%) |
| OKLCH | oklch(66.7% 0.187 39.5) |
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 #EF612B | 3.27:1 | AA large text | Lc -64.6 | Content text, not long reading |
| Black text on #EF612B | 6.41:1 | AA | Lc 44.9 | Non-text elements, placeholder text |
| #EF612B text on white | 3.27:1 | AA large text | Lc 59.2 | Large or bold text, headings |
| #EF612B text on black | 6.41:1 | AA | Lc -42.5 | 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
#FDF3EF
oklch(97.1% 0.012 43.3)
-
Step 100
100
#FBE4DD
oklch(93.6% 0.027 37.6)
-
Step 200
200
#F8CFC1
oklch(88.6% 0.05 39.7)
-
Step 300
300
#F4AD94
oklch(80.9% 0.091 40.2)
-
Step 400
400
#EC7D57
oklch(70.7% 0.147 39.4)
-
Step 500
500 (this color)
#EF612B
oklch(66.7% 0.187 39.5)
-
Step 600
600
#C44100
oklch(55.6% 0.177 39.3)
-
Step 700
700
#A53600
oklch(49% 0.155 39.6)
-
Step 800
800
#892B00
oklch(42.8% 0.136 39.4)
-
Step 900
900
#732300
oklch(37.7% 0.119 39.6)
-
Step 950
950
#441504
oklch(26.9% 0.078 39.6)
#EF612B 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) | #8A7A22 | 0.184 |
| Deuteranopia (no green cones) | #AC9A25 | 0.168 |
| Tritanopia (no blue cones) | #FF3D56 | 0.082 |
| Achromatopsia (no color) | #8E8E8E | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF612B
#EF612B
oklch(66.7% 0.187 39.5)
- #00A5C7
#00A5C7
oklch(66.7% 0.121 219.5)
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 #EF612B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Orange Pant #FB5607 ΔE 0.026
- Bright Orange #FF5B00 ΔE 0.030
- Burnt Sienna #E76F51 ΔE 0.036
- Blood Orange #FE4B03 ΔE 0.038
- Tomato #FF6347 ΔE 0.039
- Orange Red #FF4500 ΔE 0.045
- Orangered #FE420F ΔE 0.048
- Orangey Red #FA4224 ΔE 0.049
Use #EF612B 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.