#D3633D
Closest named color: Terracota (#CB6843). oklch(62.9% 0.151 39), rgb(211, 99, 61).
Aa
Black text reads best on this color (5.62:1).
About this color
#D3633D is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.151 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Terracota (#CB6843), ΔE 0.016 away. Black text reads best on it, at 5.62:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.151) |
| Temperature | warm |
| Nearest name | Terracota (#CB6843) |
| Black text | 5.62:1 |
| White text | 3.73:1 |
Values
| HEX | #D3633D |
| RGB | rgb(211, 99, 61) |
| HSL | hsl(15, 63%, 53%) |
| OKLCH | oklch(62.9% 0.151 39) |
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 #D3633D | 3.73:1 | AA large text | Lc -69.8 | Content text, not long reading |
| Black text on #D3633D | 5.62:1 | AA | Lc 39.8 | Non-text elements, placeholder text |
| #D3633D text on white | 3.73:1 | AA large text | Lc 64.3 | Content text, not long reading |
| #D3633D text on black | 5.62:1 | AA | Lc -37.4 | 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
#F7E5E0
oklch(93.5% 0.021 36)
-
Step 200
200
#F2D1C6
oklch(88.5% 0.04 39.3)
-
Step 300
300
#EBB19E
oklch(80.9% 0.073 38.9)
-
Step 400
400
#DF8568
oklch(70.6% 0.119 38.6)
-
Step 500
500 (this color)
#D3633D
oklch(62.9% 0.151 39)
-
Step 600
600
#BF4718
oklch(55.6% 0.164 39.2)
-
Step 700
700
#A43708
oklch(49% 0.152 39)
-
Step 800
800
#862F0D
oklch(42.8% 0.127 39.1)
-
Step 900
900
#6C2B14
oklch(37.8% 0.099 39.1)
-
Step 950
950
#3F1A0D
oklch(27% 0.062 39.6)
#D3633D 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) | #817539 | 0.147 |
| Deuteranopia (no green cones) | #9D8E3A | 0.135 |
| Tritanopia (no blue cones) | #E74C5B | 0.071 |
| Achromatopsia (no color) | #848484 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D3633D
#D3633D
oklch(62.9% 0.151 39)
- #0098B7
#0098B7
oklch(62.8% 0.114 219.1)
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 #D3633D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Terracota #CB6843 ΔE 0.016
- Terracotta #CA6641 ΔE 0.016
- Terra Cotta #C9643B ΔE 0.019
- Chocolate #D2691E ΔE 0.031
- Rusty Orange #CD5909 ΔE 0.037
- Pale Red #D9544D ΔE 0.041
- Adobe #BD6C48 ΔE 0.041
- Rust #CA6702 ΔE 0.042
Use #D3633D 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.