#E3666D
Closest named color: Pastel Red (#DB5856). oklch(66.5% 0.156 18.9), rgb(227, 102, 109).
Aa
Black text reads best on this color (6.38:1).
About this color
#E3666D is a medium-light, vivid red. In OKLCH its lightness is 66%, its chroma 0.156 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Pastel Red (#DB5856), ΔE 0.039 away. Black text reads best on it, at 6.38:1.
| Hue family | Reds |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.156) |
| Temperature | warm |
| Nearest name | Pastel Red (#DB5856) |
| Black text | 6.38:1 |
| White text | 3.28:1 |
Values
| HEX | #E3666D |
| RGB | rgb(227, 102, 109) |
| HSL | hsl(357, 69%, 65%) |
| OKLCH | oklch(66.5% 0.156 18.9) |
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 #E3666D | 3.28:1 | AA large text | Lc -65.1 | Content text, not long reading |
| Black text on #E3666D | 6.38:1 | AA | Lc 44.4 | Non-text elements, placeholder text |
| #E3666D text on white | 3.28:1 | AA large text | Lc 59.6 | Large or bold text, headings |
| #E3666D text on black | 6.38:1 | AA | Lc -42.1 | 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
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F8E4E4
oklch(93.5% 0.022 17.6)
-
Step 200
200
#F4CFCE
oklch(88.6% 0.042 19.8)
-
Step 300
300
#EEADAD
oklch(80.8% 0.077 18.9)
-
Step 400
400
#E28082
oklch(70.7% 0.121 19.3)
-
Step 500
500 (this color)
#E3666D
oklch(66.5% 0.156 18.9)
-
Step 600
600
#C23D4A
oklch(55.6% 0.169 19.1)
-
Step 700
700
#A72D3B
oklch(49% 0.157 19)
-
Step 800
800
#882731
oklch(42.7% 0.131 19)
-
Step 900
900
#6D262B
oklch(37.6% 0.101 19.3)
-
Step 950
950
#40171A
oklch(26.9% 0.064 18)
#E3666D 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) | #837E6D | 0.167 |
| Deuteranopia (no green cones) | #A2986A | 0.157 |
| Tritanopia (no blue cones) | #F75369 | 0.044 |
| Achromatopsia (no color) | #8E8E8E | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E3666D
#E3666D
oklch(66.5% 0.156 18.9)
- #00A8AE
#00A8AE
oklch(66.5% 0.113 199.3)
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 #E3666D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pastel Red #DB5856 ΔE 0.039
- Burnt Sienna #E76F51 ΔE 0.046
- Pale Red #D9544D ΔE 0.051
- Coral Pink #FF6163 ΔE 0.051
- Pale Violet Red #DB7093 ΔE 0.051
- Indian Red #CD5C5C ΔE 0.052
- Grapefruit #FD5956 ΔE 0.052
- Muted Pink #D1768F ΔE 0.055
Use #E3666D 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.