#F33D2A
Closest named color: Vermillion (#F4320C). oklch(63.5% 0.221 30.2), rgb(243, 61, 42).
Aa
Black text reads best on this color (5.51:1).
About this color
#F33D2A is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.221 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Vermillion (#F4320C), ΔE 0.016 away. Black text reads best on it, at 5.51:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.221) |
| Temperature | warm |
| Nearest name | Vermillion (#F4320C) |
| Black text | 5.51:1 |
| White text | 3.80:1 |
Values
| HEX | #F33D2A |
| RGB | rgb(243, 61, 42) |
| HSL | hsl(6, 89%, 56%) |
| OKLCH | oklch(63.5% 0.221 30.2) |
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 #F33D2A | 3.80:1 | AA large text | Lc -69.5 | Content text, not long reading |
| Black text on #F33D2A | 5.51:1 | AA | Lc 40.1 | Non-text elements, placeholder text |
| #F33D2A text on white | 3.80:1 | AA large text | Lc 64.0 | Content text, not long reading |
| #F33D2A text on black | 5.51:1 | AA | Lc -37.6 | 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 500.
-
Step 50
50
#FFF2F0
oklch(97.1% 0.014 28)
-
Step 100
100
#FEE3DE
oklch(93.6% 0.031 30.2)
-
Step 200
200
#FECBC2
oklch(88.4% 0.06 29.9)
-
Step 300
300
#FFA697
oklch(81% 0.108 30.1)
-
Step 400
400
#F9705C
oklch(70.7% 0.172 30.3)
-
Step 500
500 (this color)
#F33D2A
oklch(63.5% 0.221 30.2)
-
Step 600
600
#D71200
oklch(55.7% 0.222 30.1)
-
Step 700
700
#B60E00
oklch(49.2% 0.196 30.2)
-
Step 800
800
#960900
oklch(42.6% 0.17 30.1)
-
Step 900
900
#7C0F05
oklch(37.6% 0.143 30.3)
-
Step 950
950
#490D07
oklch(26.9% 0.091 30.1)
#F33D2A 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) | #766925 | 0.235 |
| Deuteranopia (no green cones) | #A3911F | 0.213 |
| Tritanopia (no blue cones) | #FF003B | 0.048 |
| Achromatopsia (no color) | #838383 | 0.222 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F33D2A
#F33D2A
oklch(63.5% 0.221 30.2)
- #009CAF
#009CAF
oklch(63.5% 0.11 209.9)
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 #F33D2A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vermillion #F4320C ΔE 0.016
- Orangey Red #FA4224 ΔE 0.018
- Red Orange #FD3C06 ΔE 0.024
- Orangered #FE420F ΔE 0.028
- Tomato Red #EC2D01 ΔE 0.028
- Orange Red #FF4500 ΔE 0.034
- Strawberry #FB2943 ΔE 0.037
- Fire Engine Red #FE0002 ΔE 0.038
Use #F33D2A 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.