#D33903
Closest named color: Brick Orange (#C14A09). oklch(57.4% 0.197 35.5), rgb(211, 57, 3).
Aa
White text reads best on this color (4.82:1).
About this color
#D33903 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.197 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Brick Orange (#C14A09), ΔE 0.040 away. White text reads best on it, at 4.82:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.197) |
| Temperature | warm |
| Nearest name | Brick Orange (#C14A09) |
| Black text | 4.35:1 |
| White text | 4.82:1 |
Values
| HEX | #D33903 |
| RGB | rgb(211, 57, 3) |
| HSL | hsl(16, 97%, 42%) |
| OKLCH | oklch(57.4% 0.197 35.5) |
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 #D33903 | 4.82:1 | AA | Lc -77.4 | Fine for body text |
| Black text on #D33903 | 4.35:1 | AA large text | Lc 32.1 | Non-text elements, placeholder text |
| #D33903 text on white | 4.82:1 | AA | Lc 72.0 | Content text, not long reading |
| #D33903 text on black | 4.35:1 | AA large text | Lc -29.7 | Dividers and decoration only |
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 600.
-
Step 50
50
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#FAE4DE
oklch(93.5% 0.026 35.7)
-
Step 200
200
#F8CEC3
oklch(88.5% 0.05 35.1)
-
Step 300
300
#F4AC99
oklch(80.8% 0.089 35.4)
-
Step 400
400
#EB7D60
oklch(70.7% 0.142 35.8)
-
Step 500
500
#E15531
oklch(63% 0.182 35.3)
-
Step 600
600 (this color)
#D33903
oklch(57.4% 0.197 35.5)
-
Step 700
700
#AC2C00
oklch(49.2% 0.17 35.6)
-
Step 800
800
#8E2200
oklch(42.7% 0.148 35.4)
-
Step 900
900
#73220B
oklch(37.7% 0.118 35.7)
-
Step 950
950
#441509
oklch(27% 0.076 35.3)
#D33903 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) | #695C00 | 0.205 |
| Deuteranopia (no green cones) | #8F7E00 | 0.183 |
| Tritanopia (no blue cones) | #E90032 | 0.065 |
| Achromatopsia (no color) | #727272 | 0.199 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D33903
#D33903
oklch(57.4% 0.197 35.5)
- #00879E
#00879E
oklch(57.4% 0.102 215.3)
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 #D33903, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brick Orange #C14A09 ΔE 0.040
- Deep Orange #DC4D01 ΔE 0.040
- Burnt Orange #C04E01 ΔE 0.046
- Sinopia #BB3E03 ΔE 0.047
- Tomato Red #EC2D01 ΔE 0.048
- Rust Orange #C45508 ΔE 0.051
- Rusty Orange #CD5909 ΔE 0.054
- Faded Red #D3494E ΔE 0.055
Use #D33903 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.