#E56B38
Closest named color: Burnt Sienna (#E76F51). oklch(66.7% 0.165 41.7), rgb(229, 107, 56).
Aa
Black text reads best on this color (6.49:1).
About this color
#E56B38 is a medium-light, vivid orange. In OKLCH its lightness is 67%, its chroma 0.165 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.024 away. Black text reads best on it, at 6.49:1.
| Hue family | Oranges |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.165) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 6.49:1 |
| White text | 3.23:1 |
Values
| HEX | #E56B38 |
| RGB | rgb(229, 107, 56) |
| HSL | hsl(18, 77%, 56%) |
| OKLCH | oklch(66.7% 0.165 41.7) |
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 #E56B38 | 3.23:1 | AA large text | Lc -64.4 | Content text, not long reading |
| Black text on #E56B38 | 6.49:1 | AA | Lc 45.1 | Large or bold text, headings |
| #E56B38 text on white | 3.23:1 | AA large text | Lc 59.0 | Large or bold text, headings |
| #E56B38 text on black | 6.49:1 | AA | Lc -42.8 | 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
#FCF3F0
oklch(97% 0.011 39.4)
-
Step 100
100
#F8E5DE
oklch(93.5% 0.023 41.4)
-
Step 200
200
#F4D0C3
oklch(88.5% 0.044 40.9)
-
Step 300
300
#EEB098
oklch(80.9% 0.08 42.1)
-
Step 400
400
#E3835E
oklch(70.6% 0.129 41.5)
-
Step 500
500 (this color)
#E56B38
oklch(66.7% 0.165 41.7)
-
Step 600
600
#C04600
oklch(55.6% 0.169 41.6)
-
Step 700
700
#A23A00
oklch(49% 0.149 41.7)
-
Step 800
800
#862F00
oklch(42.8% 0.129 42)
-
Step 900
900
#6E2807
oklch(37.6% 0.108 41.6)
-
Step 950
950
#411908
oklch(27.1% 0.068 42)
#E56B38 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) | #8D7E32 | 0.157 |
| Deuteranopia (no green cones) | #AB9935 | 0.143 |
| Tritanopia (no blue cones) | #FB5160 | 0.081 |
| Achromatopsia (no color) | #8F8F8F | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E56B38
#E56B38
oklch(66.7% 0.165 41.7)
- #00A4CA
#00A4CA
oklch(66.6% 0.123 222.1)
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 #E56B38, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.024
- Chocolate #D2691E ΔE 0.041
- Pumpkin #E17701 ΔE 0.043
- Dark Peach #DE7E5D ΔE 0.045
- Orange Pant #FB5607 ΔE 0.048
- Terracota #CB6843 ΔE 0.050
- Bright Orange #FF5B00 ΔE 0.051
- Tomato #FF6347 ΔE 0.052
Use #E56B38 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.