#EF6A3A
Closest named color: Burnt Sienna (#E76F51). oklch(68% 0.176 39.5), rgb(239, 106, 58).
Aa
Black text reads best on this color (6.79:1).
About this color
#EF6A3A is a medium-light, vivid red. In OKLCH its lightness is 68%, its chroma 0.176 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.023 away. Black text reads best on it, at 6.79:1.
| Hue family | Reds |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.176) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 6.79:1 |
| White text | 3.09:1 |
Values
| HEX | #EF6A3A |
| RGB | rgb(239, 106, 58) |
| HSL | hsl(16, 85%, 58%) |
| OKLCH | oklch(68% 0.176 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 #EF6A3A | 3.09:1 | AA large text | Lc -62.5 | Content text, not long reading |
| Black text on #EF6A3A | 6.79:1 | AA | Lc 46.9 | Large or bold text, headings |
| #EF6A3A text on white | 3.09:1 | AA large text | Lc 57.1 | Large or bold text, headings |
| #EF6A3A text on black | 6.79:1 | AA | Lc -44.6 | 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 400.
-
Step 50
50
#FFF2EE
oklch(97% 0.015 37.9)
-
Step 100
100
#FEE3DA
oklch(93.5% 0.032 39.3)
-
Step 200
200
#FECCBC
oklch(88.5% 0.061 38.5)
-
Step 300
300
#FEA88B
oklch(80.9% 0.11 39.4)
-
Step 400
400 (this color)
#EF6A3A
oklch(68% 0.176 39.5)
-
Step 500
500
#E84F00
oklch(63.2% 0.201 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
#471200
oklch(27% 0.086 39.4)
#EF6A3A 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) | #8F8034 | 0.171 |
| Deuteranopia (no green cones) | #B09E36 | 0.157 |
| Tritanopia (no blue cones) | #FF4C60 | 0.079 |
| Achromatopsia (no color) | #939393 | 0.177 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF6A3A
#EF6A3A
oklch(68% 0.176 39.5)
- #00A9CC
#00A9CC
oklch(67.9% 0.123 219.6)
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 #EF6A3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.023
- Tomato #FF6347 ΔE 0.034
- Bright Orange #FF5B00 ΔE 0.037
- Orange Pant #FB5607 ΔE 0.038
- Pinkish Orange #FF724C ΔE 0.038
- Orange Pink #FF6F52 ΔE 0.039
- Melon #FF7855 ΔE 0.047
- Dark Peach #DE7E5D ΔE 0.049
Use #EF6A3A 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.