#F63A2B
Closest named color: Orangey Red (#FA4224). oklch(63.8% 0.225 29.4), rgb(246, 58, 43).
Aa
Black text reads best on this color (5.55:1).
About this color
#F63A2B is a medium-light, vivid red. In OKLCH its lightness is 64%, its chroma 0.225 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Orangey Red (#FA4224), ΔE 0.016 away. Black text reads best on it, at 5.55:1.
| Hue family | Reds |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.225) |
| Temperature | warm |
| Nearest name | Orangey Red (#FA4224) |
| Black text | 5.55:1 |
| White text | 3.77:1 |
Values
| HEX | #F63A2B |
| RGB | rgb(246, 58, 43) |
| HSL | hsl(4, 92%, 57%) |
| OKLCH | oklch(63.8% 0.225 29.4) |
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 #F63A2B | 3.77:1 | AA large text | Lc -69.1 | Content text, not long reading |
| Black text on #F63A2B | 5.55:1 | AA | Lc 40.4 | Non-text elements, placeholder text |
| #F63A2B text on white | 3.77:1 | AA large text | Lc 63.6 | Content text, not long reading |
| #F63A2B text on black | 5.55:1 | AA | Lc -38.0 | 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
#FFE3DE
oklch(93.7% 0.032 29.8)
-
Step 200
200
#FFCBC2
oklch(88.5% 0.061 29.7)
-
Step 300
300
#FFA697
oklch(81% 0.108 30.1)
-
Step 400
400
#FB6E5C
oklch(70.7% 0.176 29.5)
-
Step 500
500 (this color)
#F63A2B
oklch(63.8% 0.225 29.4)
-
Step 600
600
#D90500
oklch(55.7% 0.227 29.5)
-
Step 700
700
#B70300
oklch(49% 0.2 29.4)
-
Step 800
800
#980200
oklch(42.8% 0.174 29.4)
-
Step 900
900
#7E0B05
oklch(37.8% 0.147 29.6)
-
Step 950
950
#4A0C07
oklch(27% 0.093 29.5)
#F63A2B 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) | #766926 | 0.241 |
| Deuteranopia (no green cones) | #A49220 | 0.219 |
| Tritanopia (no blue cones) | #FF0039 | 0.042 |
| Achromatopsia (no color) | #838383 | 0.227 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F63A2B
#F63A2B
oklch(63.8% 0.225 29.4)
- #009DB0
#009DB0
oklch(63.8% 0.11 209.8)
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 #F63A2B, closest first.
No curated palette has a color within ΔE 0.04 of #F63A2B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Orangey Red #FA4224 ΔE 0.016
- Vermillion #F4320C ΔE 0.017
- Red Orange #FD3C06 ΔE 0.022
- Orangered #FE420F ΔE 0.027
- Tomato Red #EC2D01 ΔE 0.031
- Strawberry #FB2943 ΔE 0.032
- Orange Red #FF4500 ΔE 0.033
- Bright Red #FF000D ΔE 0.033
Use #F63A2B 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.