#F33D26
Closest named color: Vermillion (#F4320C). oklch(63.4% 0.221 30.9), rgb(243, 61, 38).
Aa
Black text reads best on this color (5.50:1).
About this color
#F33D26 is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.221 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Vermillion (#F4320C), ΔE 0.014 away. Black text reads best on it, at 5.50:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.221) |
| Temperature | warm |
| Nearest name | Vermillion (#F4320C) |
| Black text | 5.50:1 |
| White text | 3.81:1 |
Values
| HEX | #F33D26 |
| RGB | rgb(243, 61, 38) |
| HSL | hsl(7, 90%, 55%) |
| OKLCH | oklch(63.4% 0.221 30.9) |
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 #F33D26 | 3.81:1 | AA large text | Lc -69.5 | Content text, not long reading |
| Black text on #F33D26 | 5.50:1 | AA | Lc 40.0 | Non-text elements, placeholder text |
| #F33D26 text on white | 3.81:1 | AA large text | Lc 64.0 | Content text, not long reading |
| #F33D26 text on black | 5.50:1 | 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
#FEE3DD
oklch(93.6% 0.031 32.6)
-
Step 200
200
#FECBC1
oklch(88.4% 0.06 31.1)
-
Step 300
300
#FFA696
oklch(80.9% 0.109 30.7)
-
Step 400
400
#F9705A
oklch(70.7% 0.172 31.1)
-
Step 500
500 (this color)
#F33D26
oklch(63.4% 0.221 30.9)
-
Step 600
600
#D51B00
oklch(55.6% 0.217 30.9)
-
Step 700
700
#B41500
oklch(49.1% 0.192 30.9)
-
Step 800
800
#950F00
oklch(42.7% 0.167 30.8)
-
Step 900
900
#7C0F03
oklch(37.6% 0.144 30.8)
-
Step 950
950
#490D06
oklch(26.9% 0.091 30.8)
#F33D26 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) | #766920 | 0.236 |
| Deuteranopia (no green cones) | #A3911A | 0.213 |
| Tritanopia (no blue cones) | #FF003A | 0.049 |
| Achromatopsia (no color) | #838383 | 0.222 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F33D26
#F33D26
oklch(63.4% 0.221 30.9)
- #009CB0
#009CB0
oklch(63.5% 0.11 210.7)
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 #F33D26, closest first.
No curated palette has a color within ΔE 0.04 of #F33D26.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vermillion #F4320C ΔE 0.014
- Orangey Red #FA4224 ΔE 0.017
- Red Orange #FD3C06 ΔE 0.022
- Orangered #FE420F ΔE 0.027
- Tomato Red #EC2D01 ΔE 0.027
- Orange Red #FF4500 ΔE 0.032
- Blood Orange #FE4B03 ΔE 0.037
- Fire Engine Red #FE0002 ΔE 0.037
Use #F33D26 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.