#E1634F
Closest named color: Burnt Sienna (#E76F51). oklch(65.2% 0.162 31), rgb(225, 99, 79).
Aa
Black text reads best on this color (6.09:1).
About this color
#E1634F is a medium-light, vivid red. In OKLCH its lightness is 65%, its chroma 0.162 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Sienna (#E76F51), ΔE 0.029 away. Black text reads best on it, at 6.09:1.
| Hue family | Reds |
| Lightness | medium-light (65%) |
| Chroma | vivid (0.162) |
| Temperature | warm |
| Nearest name | Burnt Sienna (#E76F51) |
| Black text | 6.09:1 |
| White text | 3.44:1 |
Values
| HEX | #E1634F |
| RGB | rgb(225, 99, 79) |
| HSL | hsl(8, 71%, 60%) |
| OKLCH | oklch(65.2% 0.162 31) |
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 #E1634F | 3.44:1 | AA large text | Lc -66.7 | Content text, not long reading |
| Black text on #E1634F | 6.09:1 | AA | Lc 42.8 | Non-text elements, placeholder text |
| #E1634F text on white | 3.44:1 | AA large text | Lc 61.3 | Content text, not long reading |
| #E1634F text on black | 6.09:1 | AA | Lc -40.4 | 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
#F9E5E1
oklch(93.7% 0.023 31.1)
-
Step 200
200
#F5CFC8
oklch(88.5% 0.044 30.2)
-
Step 300
300
#EFAEA2
oklch(80.9% 0.079 30.6)
-
Step 400
400
#E4816F
oklch(70.7% 0.126 31.3)
-
Step 500
500 (this color)
#E1634F
oklch(65.2% 0.162 31)
-
Step 600
600
#C53D2A
oklch(55.6% 0.176 31)
-
Step 700
700
#AA2E1D
oklch(49.2% 0.163 31.1)
-
Step 800
800
#8A281A
oklch(42.8% 0.135 31.2)
-
Step 900
900
#6F261C
oklch(37.7% 0.106 30.5)
-
Step 950
950
#411811
oklch(27% 0.066 31.5)
#E1634F 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) | #84794D | 0.165 |
| Deuteranopia (no green cones) | #A3954C | 0.154 |
| Tritanopia (no blue cones) | #F64A5F | 0.061 |
| Achromatopsia (no color) | #8A8A8A | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #E1634F
#E1634F
oklch(65.2% 0.162 31)
- #00A2B7
#00A2B7
oklch(65.3% 0.113 210.9)
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 #E1634F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Sienna #E76F51 ΔE 0.029
- Pastel Red #DB5856 ΔE 0.030
- Pale Red #D9544D ΔE 0.036
- Terracota #CB6843 ΔE 0.044
- Terracotta #CA6641 ΔE 0.046
- Indian Red #CD5C5C ΔE 0.047
- Terra Cotta #C9643B ΔE 0.051
- Dark Coral #CF524E ΔE 0.053
Use #E1634F 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.