#E1664B
Closest named color: Burnt Sienna (#E76F51). oklch(65.6% 0.16 33.8), rgb(225, 102, 75).
Aa
Black text reads best on this color (6.20:1).
About this color
#E1664B is a medium-light, vivid red. In OKLCH its lightness is 66%, its chroma 0.160 and its hue 34°. 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 6.20:1.
| Hue family | Reds |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.160) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 6.20:1 |
| White text | 3.38:1 |
Values
| HEX | #E1664B |
| RGB | rgb(225, 102, 75) |
| HSL | hsl(11, 71%, 59%) |
| OKLCH | oklch(65.6% 0.16 33.8) |
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 #E1664B | 3.38:1 | AA large text | Lc -66.1 | Content text, not long reading |
| Black text on #E1664B | 6.20:1 | AA | Lc 43.4 | Non-text elements, placeholder text |
| #E1664B text on white | 3.38:1 | AA large text | Lc 60.7 | Content text, not long reading |
| #E1664B text on black | 6.20:1 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F9E5E0
oklch(93.7% 0.023 34.3)
-
Step 200
200
#F4D0C7
oklch(88.6% 0.043 34.3)
-
Step 300
300
#EEAFA0
oklch(80.9% 0.077 33.8)
-
Step 400
400
#E3826C
oklch(70.7% 0.125 33.7)
-
Step 500
500 (this color)
#E1664B
oklch(65.6% 0.16 33.8)
-
Step 600
600
#C44023
oklch(55.7% 0.173 33.9)
-
Step 700
700
#A93015
oklch(49.2% 0.162 33.7)
-
Step 800
800
#892A15
oklch(42.8% 0.133 33.9)
-
Step 900
900
#6E2818
oklch(37.7% 0.103 34.3)
-
Step 950
950
#41180F
oklch(27% 0.066 33.9)
#E1664B 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) | #867B48 | 0.162 |
| Deuteranopia (no green cones) | #A59648 | 0.149 |
| Tritanopia (no blue cones) | #F64D60 | 0.066 |
| Achromatopsia (no color) | #8B8B8B | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E1664B
#E1664B
oklch(65.6% 0.16 33.8)
- #00A2BC
#00A2BC
oklch(65.5% 0.115 214.5)
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 #E1664B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.023
- Pastel Red #DB5856 ΔE 0.039
- Terracota #CB6843 ΔE 0.042
- Pale Red #D9544D ΔE 0.043
- Terracotta #CA6641 ΔE 0.044
- Terra Cotta #C9643B ΔE 0.049
- Dark Peach #DE7E5D ΔE 0.050
- Chocolate #D2691E ΔE 0.050
Use #E1664B 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.