#DF310D
Closest named color: Tomato Red (#EC2D01). oklch(58.9% 0.213 32.5), rgb(223, 49, 13).
Aa
Black text reads best on this color (4.58:1).
About this color
#DF310D is a medium-dark, vivid red. In OKLCH its lightness is 59%, its chroma 0.213 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato Red (#EC2D01), ΔE 0.025 away. Black text reads best on it, at 4.58:1.
| Hue family | Reds |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.213) |
| Temperature | warm |
| Nearest name | Tomato Red (#EC2D01) |
| Black text | 4.58:1 |
| White text | 4.58:1 |
Values
| HEX | #DF310D |
| RGB | rgb(223, 49, 13) |
| HSL | hsl(10, 89%, 46%) |
| OKLCH | oklch(58.9% 0.213 32.5) |
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 #DF310D | 4.58:1 | AA | Lc -75.6 | Fine for body text |
| Black text on #DF310D | 4.58:1 | AA | Lc 34.0 | Non-text elements, placeholder text |
| #DF310D text on white | 4.58:1 | AA | Lc 70.1 | Content text, not long reading |
| #DF310D text on black | 4.58:1 | AA | Lc -31.6 | 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 600.
-
Step 50
50
#FEF3F0
oklch(97.2% 0.013 35.7)
-
Step 100
100
#FCE4DE
oklch(93.7% 0.028 34.3)
-
Step 200
200
#FACDC3
oklch(88.5% 0.053 32.7)
-
Step 300
300
#F8AA99
oklch(80.9% 0.096 32.8)
-
Step 400
400
#F17860
oklch(70.8% 0.154 32.6)
-
Step 500
500
#E84C30
oklch(63.1% 0.197 32.5)
-
Step 600
600 (this color)
#DF310D
oklch(58.9% 0.213 32.5)
-
Step 700
700
#B12000
oklch(49.1% 0.183 32.6)
-
Step 800
800
#921800
oklch(42.6% 0.159 32.5)
-
Step 900
900
#771C0B
oklch(37.8% 0.128 32.6)
-
Step 950
950
#461309
oklch(27.1% 0.081 33.1)
#DF310D 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) | #6A5D00 | 0.227 |
| Deuteranopia (no green cones) | #948300 | 0.203 |
| Tritanopia (no blue cones) | #F6002D | 0.054 |
| Achromatopsia (no color) | #757575 | 0.215 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #DF310D
#DF310D
oklch(58.9% 0.213 32.5)
- #008CA1
#008CA1
oklch(58.8% 0.103 213)
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 #DF310D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato Red #EC2D01 ΔE 0.025
- Deep Orange #DC4D01 ΔE 0.041
- Vermillion #F4320C ΔE 0.042
- Imperial Red #E63946 ΔE 0.045
- Red Pantone #EF233C ΔE 0.049
- Crimson #DC143C ΔE 0.051
- Cherry Red #F7022A ΔE 0.054
- Faded Red #D3494E ΔE 0.054
Use #DF310D 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.