#D3531F
Closest named color: Deep Orange (#DC4D01). oklch(60.4% 0.173 39.9), rgb(211, 83, 31).
Aa
Black text reads best on this color (5.02:1).
About this color
#D3531F is a medium-dark, vivid red. In OKLCH its lightness is 60%, its chroma 0.173 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Orange (#DC4D01), ΔE 0.019 away. Black text reads best on it, at 5.02:1.
| Hue family | Reds |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.173) |
| Temperature | warm |
| Nearest name | Deep Orange (#DC4D01) |
| Black text | 5.02:1 |
| White text | 4.17:1 |
Values
| HEX | #D3531F |
| RGB | rgb(211, 83, 31) |
| HSL | hsl(17, 74%, 47%) |
| OKLCH | oklch(60.4% 0.173 39.9) |
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 #D3531F | 4.17:1 | AA large text | Lc -73.4 | Content text, not long reading |
| Black text on #D3531F | 5.02:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #D3531F text on white | 4.17:1 | AA large text | Lc 67.9 | Content text, not long reading |
| #D3531F text on black | 5.02:1 | AA | Lc -33.8 | 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
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#F9E5DE
oklch(93.6% 0.024 40.3)
-
Step 200
200
#F6CFC2
oklch(88.4% 0.048 39.3)
-
Step 300
300
#F1AE97
oklch(80.8% 0.085 39.7)
-
Step 400
400
#E7815D
oklch(70.8% 0.136 40)
-
Step 500
500 (this color)
#D3531F
oklch(60.4% 0.173 39.9)
-
Step 600
600
#C34200
oklch(55.6% 0.175 39.8)
-
Step 700
700
#A53700
oklch(49.2% 0.154 40)
-
Step 800
800
#882C00
oklch(42.7% 0.134 40.1)
-
Step 900
900
#702606
oklch(37.6% 0.112 40.1)
-
Step 950
950
#421707
oklch(26.9% 0.072 39.9)
#D3531F 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) | #786A15 | 0.170 |
| Deuteranopia (no green cones) | #978718 | 0.156 |
| Tritanopia (no blue cones) | #E83249 | 0.078 |
| Achromatopsia (no color) | #7C7C7C | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D3531F
#D3531F
oklch(60.4% 0.173 39.9)
- #0090AF
#0090AF
oklch(60.4% 0.11 220.2)
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 #D3531F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Orange #DC4D01 ΔE 0.019
- Rusty Orange #CD5909 ΔE 0.020
- Rust Orange #C45508 ΔE 0.031
- Terra Cotta #C9643B ΔE 0.035
- Terracotta #CA6641 ΔE 0.040
- Burnt Orange #C04E01 ΔE 0.042
- Brick Orange #C14A09 ΔE 0.043
- Terracota #CB6843 ΔE 0.043
Use #D3531F 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.