#E6664F
Closest named color: Burnt Sienna (#E76F51). oklch(66.4% 0.164 32), rgb(230, 102, 79).
Aa
Black text reads best on this color (6.37:1).
About this color
#E6664F is a medium-light, vivid red. In OKLCH its lightness is 66%, its chroma 0.164 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.019 away. Black text reads best on it, at 6.37:1.
| Hue family | Reds |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.164) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 6.37:1 |
| White text | 3.29:1 |
Values
| HEX | #E6664F |
| RGB | rgb(230, 102, 79) |
| HSL | hsl(9, 75%, 61%) |
| OKLCH | oklch(66.4% 0.164 32) |
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 #E6664F | 3.29:1 | AA large text | Lc -65.0 | Content text, not long reading |
| Black text on #E6664F | 6.37:1 | AA | Lc 44.5 | Non-text elements, placeholder text |
| #E6664F text on white | 3.29:1 | AA large text | Lc 59.6 | Large or bold text, headings |
| #E6664F text on black | 6.37:1 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#F9E5E0
oklch(93.7% 0.023 34.3)
-
Step 200
200
#F5CFC7
oklch(88.5% 0.044 31.9)
-
Step 300
300
#F0AEA0
oklch(80.9% 0.081 32.3)
-
Step 400
400
#E5806D
oklch(70.6% 0.129 31.7)
-
Step 500
500 (this color)
#E6664F
oklch(66.4% 0.164 32)
-
Step 600
600
#C63C25
oklch(55.6% 0.179 32)
-
Step 700
700
#AB2C18
oklch(49.1% 0.167 31.8)
-
Step 800
800
#8A2717
oklch(42.6% 0.137 31.9)
-
Step 900
900
#6F2619
oklch(37.6% 0.107 32.3)
-
Step 950
950
#421710
oklch(27% 0.069 31.3)
#E6664F 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) | #887C4C | 0.167 |
| Deuteranopia (no green cones) | #A7984C | 0.154 |
| Tritanopia (no blue cones) | #FC4C61 | 0.065 |
| Achromatopsia (no color) | #8E8E8E | 0.165 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E6664F
#E6664F
oklch(66.4% 0.164 32)
- #00A5BC
#00A5BC
oklch(66.3% 0.115 212.1)
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 #E6664F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.019
- Pastel Red #DB5856 ΔE 0.041
- Tomato #FF6347 ΔE 0.045
- Grapefruit #FD5956 ΔE 0.047
- Pale Red #D9544D ΔE 0.047
- Dark Peach #DE7E5D ΔE 0.049
- Terracota #CB6843 ΔE 0.052
- Orange Pink #FF6F52 ΔE 0.052
Use #E6664F 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.