#E3673D
Closest named color: Burnt Sienna (#E76F51). oklch(65.9% 0.165 38.8), rgb(227, 103, 61).
Aa
Black text reads best on this color (6.27:1).
About this color
#E3673D is a medium-light, vivid red. In OKLCH its lightness is 66%, its chroma 0.165 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.024 away. Black text reads best on it, at 6.27:1.
| Hue family | Reds |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.165) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 6.27:1 |
| White text | 3.34:1 |
Values
| HEX | #E3673D |
| RGB | rgb(227, 103, 61) |
| HSL | hsl(15, 75%, 56%) |
| OKLCH | oklch(65.9% 0.165 38.8) |
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 #E3673D | 3.34:1 | AA large text | Lc -65.7 | Content text, not long reading |
| Black text on #E3673D | 6.27:1 | AA | Lc 43.8 | Non-text elements, placeholder text |
| #E3673D text on white | 3.34:1 | AA large text | Lc 60.2 | Content text, not long reading |
| #E3673D text on black | 6.27:1 | AA | Lc -41.5 | 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
#FCF3F0
oklch(97% 0.011 39.4)
-
Step 100
100
#F9E5DF
oklch(93.6% 0.023 37.4)
-
Step 200
200
#F5D0C4
oklch(88.6% 0.045 38.8)
-
Step 300
300
#EFAF9A
oklch(80.9% 0.081 38.9)
-
Step 400
400
#E48262
oklch(70.6% 0.129 38.8)
-
Step 500
500 (this color)
#E3673D
oklch(65.9% 0.165 38.8)
-
Step 600
600
#C54000
oklch(55.7% 0.179 38.9)
-
Step 700
700
#A63400
oklch(49% 0.158 38.7)
-
Step 800
800
#892A00
oklch(42.6% 0.137 39)
-
Step 900
900
#6F280E
oklch(37.8% 0.107 38.9)
-
Step 950
950
#41180A
oklch(26.9% 0.068 38.9)
#E3673D 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) | #897B38 | 0.161 |
| Deuteranopia (no green cones) | #A7973A | 0.148 |
| Tritanopia (no blue cones) | #F94C5E | 0.077 |
| Achromatopsia (no color) | #8C8C8C | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E3673D
#E3673D
oklch(65.9% 0.165 38.8)
- #00A2C3
#00A2C3
oklch(65.8% 0.119 219.2)
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 #E3673D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.024
- Chocolate #D2691E ΔE 0.041
- Terracota #CB6843 ΔE 0.044
- Terracotta #CA6641 ΔE 0.046
- Orange Pant #FB5607 ΔE 0.049
- Dark Peach #DE7E5D ΔE 0.049
- Terra Cotta #C9643B ΔE 0.050
- Pastel Red #DB5856 ΔE 0.051
Use #E3673D 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.