#E66600
Closest named color: Chocolate (#D2691E). oklch(65.8% 0.181 47.5), rgb(230, 102, 0).
Aa
Black text reads best on this color (6.26:1).
About this color
#E66600 is a medium-light, vivid orange. In OKLCH its lightness is 66%, its chroma 0.181 and its hue 47°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate (#D2691E), ΔE 0.036 away. Black text reads best on it, at 6.26:1.
| Hue family | Oranges |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.181) |
| Temperature | warm |
| Nearest name | Chocolate (#D2691E) |
| Black text | 6.26:1 |
| White text | 3.35:1 |
Values
| HEX | #E66600 |
| RGB | rgb(230, 102, 0) |
| HSL | hsl(27, 100%, 45%) |
| OKLCH | oklch(65.8% 0.181 47.5) |
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 #E66600 | 3.35:1 | AA large text | Lc -65.6 | Content text, not long reading |
| Black text on #E66600 | 6.26:1 | AA | Lc 43.9 | Non-text elements, placeholder text |
| #E66600 text on white | 3.35:1 | AA large text | Lc 60.1 | Content text, not long reading |
| #E66600 text on black | 6.26:1 | AA | Lc -41.6 | 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 500.
-
Step 50
50
#FDF3EF
oklch(97.1% 0.012 43.3)
-
Step 100
100
#F9E5DC
oklch(93.6% 0.025 45.9)
-
Step 200
200
#F6D0BE
oklch(88.5% 0.049 46.8)
-
Step 300
300
#F1B08F
oklch(81% 0.089 48)
-
Step 400
400
#E7824C
oklch(70.7% 0.142 47.4)
-
Step 500
500 (this color)
#E66600
oklch(65.8% 0.181 47.5)
-
Step 600
600
#B85000
oklch(55.7% 0.153 47.4)
-
Step 700
700
#9B4200
oklch(49% 0.135 47.3)
-
Step 800
800
#803600
oklch(42.8% 0.117 47.8)
-
Step 900
900
#6C2C00
oklch(37.8% 0.104 47.5)
-
Step 950
950
#421800
oklch(27% 0.074 47.5)
#E66600 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) | #8C7A00 | 0.162 |
| Deuteranopia (no green cones) | #AB9700 | 0.147 |
| Tritanopia (no blue cones) | #FD4657 | 0.100 |
| Achromatopsia (no color) | #8C8C8C | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E66600
#E66600
oklch(65.8% 0.181 47.5)
- #00A0CE
#00A0CE
oklch(65.8% 0.128 227.3)
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 #E66600, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate #D2691E ΔE 0.036
- Pumpkin #E17701 ΔE 0.036
- Orange Pant #FB5607 ΔE 0.045
- Bright Orange #FF5B00 ΔE 0.047
- Burnt Sienna #E76F51 ΔE 0.048
- Browny Orange #CA6B02 ΔE 0.051
- Rust #CA6702 ΔE 0.052
- Deep Orange #DC4D01 ΔE 0.054
Use #E66600 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.