#D63003
Closest named color: Tomato Red (#EC2D01). oklch(57.1% 0.207 33.5), rgb(214, 48, 3).
Aa
White text reads best on this color (4.90:1).
About this color
#D63003 is a medium-dark, vivid red. In OKLCH its lightness is 57%, its chroma 0.207 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato Red (#EC2D01), ΔE 0.043 away. White text reads best on it, at 4.90:1.
| Hue family | Reds |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.207) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 4.28:1 |
| White text | 4.90:1 |
Values
| HEX | #D63003 |
| RGB | rgb(214, 48, 3) |
| HSL | hsl(13, 97%, 43%) |
| OKLCH | oklch(57.1% 0.207 33.5) |
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 #D63003 | 4.90:1 | AA | Lc -77.7 | Fine for body text |
| Black text on #D63003 | 4.28:1 | AA large text | Lc 31.8 | Non-text elements, placeholder text |
| #D63003 text on white | 4.90:1 | AA | Lc 72.3 | Content text, not long reading |
| #D63003 text on black | 4.28:1 | AA large text | Lc -29.4 | 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
#FEF3F0
oklch(97.2% 0.013 35.7)
-
Step 100
100
#FBE4DE
oklch(93.6% 0.027 35)
-
Step 200
200
#F9CEC3
oklch(88.5% 0.051 34.7)
-
Step 300
300
#F6AB99
oklch(80.9% 0.093 34)
-
Step 400
400
#EE7A61
oklch(70.7% 0.148 33.4)
-
Step 500
500
#E55031
oklch(63.1% 0.19 33.5)
-
Step 600
600 (this color)
#D63003
oklch(57.1% 0.207 33.5)
-
Step 700
700
#AF2400
oklch(49.1% 0.179 33.5)
-
Step 800
800
#911C00
oklch(42.7% 0.156 33.4)
-
Step 900
900
#751E0C
oklch(37.6% 0.124 33.3)
-
Step 950
950
#451409
oklch(27% 0.078 34.2)
#D63003 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) | #665900 | 0.218 |
| Deuteranopia (no green cones) | #8E7E00 | 0.195 |
| Tritanopia (no blue cones) | #EC002B | 0.055 |
| Achromatopsia (no color) | #717171 | 0.208 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #D63003
#D63003
oklch(57.1% 0.207 33.5)
- #00869B
#00869B
oklch(57% 0.1 213.7)
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 #D63003, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.043
- Deep Orange #DC4D01 ΔE 0.048
- Brick Orange #C14A09 ΔE 0.050
- Crimson #DC143C ΔE 0.052
- Sinopia #BB3E03 ΔE 0.053
- Faded Red #D3494E ΔE 0.057
- Burnt Orange #C04E01 ΔE 0.057
- Imperial Red #E63946 ΔE 0.058
Use #D63003 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.