#E5642A
Closest named color: Burnt Sienna (#E76F51). oklch(65.6% 0.175 42), rgb(229, 100, 42).
Aa
Black text reads best on this color (6.18:1).
About this color
#E5642A is a medium-light, vivid orange. In OKLCH its lightness is 66%, its chroma 0.175 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.036 away. Black text reads best on it, at 6.18:1.
| Hue family | Oranges |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.175) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 6.18:1 |
| White text | 3.39:1 |
Values
| HEX | #E5642A |
| RGB | rgb(229, 100, 42) |
| HSL | hsl(19, 78%, 53%) |
| OKLCH | oklch(65.6% 0.175 42) |
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 #E5642A | 3.39:1 | AA large text | Lc -66.1 | Content text, not long reading |
| Black text on #E5642A | 6.18:1 | AA | Lc 43.4 | Non-text elements, placeholder text |
| #E5642A text on white | 3.39:1 | AA large text | Lc 60.7 | Content text, not long reading |
| #E5642A text on black | 6.18:1 | AA | Lc -41.0 | 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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#F9E5DD
oklch(93.6% 0.025 43.2)
-
Step 200
200
#F6D0C1
oklch(88.6% 0.048 42.7)
-
Step 300
300
#F1AF95
oklch(81% 0.086 42.4)
-
Step 400
400
#E78159
oklch(70.7% 0.137 41.7)
-
Step 500
500 (this color)
#E5642A
oklch(65.6% 0.175 42)
-
Step 600
600
#BF4700
oklch(55.5% 0.167 42.1)
-
Step 700
700
#A23B00
oklch(49.2% 0.148 42.2)
-
Step 800
800
#862F00
oklch(42.8% 0.129 42)
-
Step 900
900
#702600
oklch(37.6% 0.113 42)
-
Step 950
950
#421805
oklch(27% 0.071 42.9)
#E5642A 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) | #897921 | 0.167 |
| Deuteranopia (no green cones) | #A89625 | 0.152 |
| Tritanopia (no blue cones) | #FC4659 | 0.086 |
| Achromatopsia (no color) | #8B8B8B | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E5642A
#E5642A
oklch(65.6% 0.175 42)
- #00A0C6
#00A0C6
oklch(65.5% 0.122 222.6)
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 #E5642A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.036
- Chocolate #D2691E ΔE 0.037
- Orange Pant #FB5607 ΔE 0.042
- Bright Orange #FF5B00 ΔE 0.047
- Pumpkin #E17701 ΔE 0.048
- Deep Orange #DC4D01 ΔE 0.048
- Terracota #CB6843 ΔE 0.049
- Terracotta #CA6641 ΔE 0.051
Use #E5642A 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.