#EF672F
Closest named color: Burnt Sienna (#E76F51). oklch(67.5% 0.181 40.9), rgb(239, 103, 47).
Aa
Black text reads best on this color (6.65:1).
About this color
#EF672F is a medium-light, vivid orange. In OKLCH its lightness is 67%, its chroma 0.181 and its hue 41°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.030 away. Black text reads best on it, at 6.65:1.
| Hue family | Oranges |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.181) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 6.65:1 |
| White text | 3.15:1 |
Values
| HEX | #EF672F |
| RGB | rgb(239, 103, 47) |
| HSL | hsl(18, 86%, 56%) |
| OKLCH | oklch(67.5% 0.181 40.9) |
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 #EF672F | 3.15:1 | AA large text | Lc -63.3 | Content text, not long reading |
| Black text on #EF672F | 6.65:1 | AA | Lc 46.2 | Large or bold text, headings |
| #EF672F text on white | 3.15:1 | AA large text | Lc 57.9 | Large or bold text, headings |
| #EF672F text on black | 6.65:1 | AA | Lc -43.9 | 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
#FEE3D9
oklch(93.5% 0.033 41.5)
-
Step 200
200
#FFCCBA
oklch(88.5% 0.063 40.3)
-
Step 300
300
#FFA887
oklch(81% 0.113 41.5)
-
Step 400
400 (this color)
#EF672F
oklch(67.5% 0.181 40.9)
-
Step 500
500
#E55300
oklch(63.2% 0.194 41)
-
Step 600
600
#C14400
oklch(55.5% 0.172 40.7)
-
Step 700
700
#A33900
oklch(49.1% 0.151 41.1)
-
Step 800
800
#872D00
oklch(42.7% 0.132 40.7)
-
Step 900
900
#722500
oklch(37.8% 0.117 40.9)
-
Step 950
950
#461300
oklch(26.9% 0.084 40.5)
#EF672F 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) | #8D7E27 | 0.176 |
| Deuteranopia (no green cones) | #AF9C2A | 0.159 |
| Tritanopia (no blue cones) | #FF475C | 0.083 |
| Achromatopsia (no color) | #919191 | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF672F
#EF672F
oklch(67.5% 0.181 40.9)
- #00A7CC
#00A7CC
oklch(67.5% 0.124 221.1)
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 #EF672F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.030
- Orange Pant #FB5607 ΔE 0.032
- Bright Orange #FF5B00 ΔE 0.033
- Tomato #FF6347 ΔE 0.038
- Pinkish Orange #FF724C ΔE 0.044
- Orange Pink #FF6F52 ΔE 0.045
- Blood Orange #FE4B03 ΔE 0.047
- Pumpkin #E17701 ΔE 0.049
Use #EF672F 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.