#FF2D13
Closest named color: Red Orange (#FD3C06). oklch(64.3% 0.243 30.7), rgb(255, 45, 19).
Aa
Black text reads best on this color (5.63:1).
About this color
#FF2D13 is a medium-light, vivid red. In OKLCH its lightness is 64%, its chroma 0.243 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Red Orange (#FD3C06), ΔE 0.017 away. Black text reads best on it, at 5.63:1.
| Hue family | Reds |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.243) |
| Temperature | warm |
| Nearest name | Red Orange (#FD3C06) |
| Black text | 5.63:1 |
| White text | 3.72:1 |
Values
| HEX | #FF2D13 |
| RGB | rgb(255, 45, 19) |
| HSL | hsl(7, 100%, 54%) |
| OKLCH | oklch(64.3% 0.243 30.7) |
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 #FF2D13 | 3.72:1 | AA large text | Lc -68.2 | Content text, not long reading |
| Black text on #FF2D13 | 5.63:1 | AA | Lc 41.4 | Non-text elements, placeholder text |
| #FF2D13 text on white | 3.72:1 | AA large text | Lc 62.7 | Content text, not long reading |
| #FF2D13 text on black | 5.63:1 | AA | Lc -39.0 | 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
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FFE2DD
oklch(93.5% 0.033 29.4)
-
Step 200
200
#FFCBC1
oklch(88.5% 0.061 30.9)
-
Step 300
300
#FFA696
oklch(80.9% 0.109 30.7)
-
Step 400
400
#FF6A54
oklch(70.7% 0.186 30.7)
-
Step 500
500 (this color)
#FF2D13
oklch(64.3% 0.243 30.7)
-
Step 600
600
#D51900
oklch(55.5% 0.218 30.7)
-
Step 700
700
#B51400
oklch(49.2% 0.193 30.8)
-
Step 800
800
#950E00
oklch(42.6% 0.167 30.7)
-
Step 900
900
#7E0A00
oklch(37.7% 0.148 30.7)
-
Step 950
950
#4C0802
oklch(27% 0.1 31.2)
#FF2D13 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) | #756706 | 0.263 |
| Deuteranopia (no green cones) | #A79400 | 0.235 |
| Tritanopia (no blue cones) | #FF002C | 0.031 |
| Achromatopsia (no color) | #848484 | 0.245 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #FF2D13
#FF2D13
oklch(64.3% 0.243 30.7)
- #009FB3
#009FB3
oklch(64.4% 0.112 210.4)
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 #FF2D13, closest first.
No curated palette has a color within ΔE 0.04 of #FF2D13.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Orange #FD3C06 ΔE 0.017
- Orangey Red #FA4224 ΔE 0.021
- Vermillion #F4320C ΔE 0.021
- Red #FF0000 ΔE 0.022
- Bright Red #FF000D ΔE 0.023
- Fire Engine Red #FE0002 ΔE 0.023
- Orangered #FE420F ΔE 0.023
- Orange Red #FF4500 ΔE 0.029
Use #FF2D13 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.