#EF610A
Closest named color: Orange Pant (#FB5607). oklch(66.5% 0.192 43.5), rgb(239, 97, 10).
Aa
Black text reads best on this color (6.38:1).
About this color
#EF610A is a medium-light, vivid orange. In OKLCH its lightness is 67%, its chroma 0.192 and its hue 44°. 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 6.38:1.
| Hue family | Oranges |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.192) |
| Temperature | warm |
| Nearest name | Orange Pant (#FB5607) |
| Black text | 6.38:1 |
| White text | 3.28:1 |
Values
| HEX | #EF610A |
| RGB | rgb(239, 97, 10) |
| HSL | hsl(23, 92%, 49%) |
| OKLCH | oklch(66.5% 0.192 43.5) |
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 #EF610A | 3.28:1 | AA large text | Lc -64.7 | Content text, not long reading |
| Black text on #EF610A | 6.38:1 | AA | Lc 44.8 | Non-text elements, placeholder text |
| #EF610A text on white | 3.28:1 | AA large text | Lc 59.3 | Large or bold text, headings |
| #EF610A text on black | 6.38:1 | AA | Lc -42.4 | 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
#FDF3EF
oklch(97.1% 0.012 43.3)
-
Step 100
100
#FBE5DC
oklch(93.7% 0.027 43.7)
-
Step 200
200
#F8CFBE
oklch(88.5% 0.052 43.7)
-
Step 300
300
#F5AD8F
oklch(80.9% 0.095 43.5)
-
Step 400
400
#EC7E4D
oklch(70.8% 0.15 43.7)
-
Step 500
500 (this color)
#EF610A
oklch(66.5% 0.192 43.5)
-
Step 600
600
#BD4A00
oklch(55.6% 0.163 43.7)
-
Step 700
700
#A03D00
oklch(49.1% 0.144 43.5)
-
Step 800
800
#843100
oklch(42.7% 0.125 43.5)
-
Step 900
900
#6F2800
oklch(37.7% 0.111 43.6)
-
Step 950
950
#441600
oklch(27% 0.078 44.2)
#EF610A 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) | #8B7A00 | 0.182 |
| Deuteranopia (no green cones) | #AD9A00 | 0.166 |
| Tritanopia (no blue cones) | #FF3B54 | 0.094 |
| Achromatopsia (no color) | #8E8E8E | 0.193 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF610A
#EF610A
oklch(66.5% 0.192 43.5)
- #00A3CB
#00A3CB
oklch(66.4% 0.124 223.4)
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 #EF610A, 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 0.029
- Blood Orange #FE4B03 ΔE 0.041
- Burnt Sienna #E76F51 ΔE 0.046
- Orange Red #FF4500 ΔE 0.048
- Tomato #FF6347 ΔE 0.049
- Pumpkin #E17701 ΔE 0.049
- Orangered #FE420F ΔE 0.052
Use #EF610A 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.