#F3340F
Closest named color: Vermillion (#F4320C). oklch(62.6% 0.229 32.2), rgb(243, 52, 15).
Aa
Black text reads best on this color (5.30:1).
About this color
#F3340F is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.229 and its hue 32°. Its hue sits on the warm side of the wheel. The nearest named color is Vermillion (#F4320C), ΔE 0.002 away. Black text reads best on it, at 5.30:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.229) |
| Temperature | warm |
| Nearest name | Vermillion (#F4320C) |
| Black text | 5.30:1 |
| White text | 3.95:1 |
Values
| HEX | #F3340F |
| RGB | rgb(243, 52, 15) |
| HSL | hsl(10, 90%, 51%) |
| OKLCH | oklch(62.6% 0.229 32.2) |
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 #F3340F | 3.95:1 | AA large text | Lc -70.6 | Content text, not long reading |
| Black text on #F3340F | 5.30:1 | AA | Lc 39.0 | Non-text elements, placeholder text |
| #F3340F text on white | 3.95:1 | AA large text | Lc 65.1 | Content text, not long reading |
| #F3340F text on black | 5.30:1 | AA | Lc -36.6 | 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
#FFF2EF
oklch(97.1% 0.015 33.1)
-
Step 100
100
#FFE3DC
oklch(93.7% 0.032 34.3)
-
Step 200
200
#FFCBC0
oklch(88.5% 0.061 32.1)
-
Step 300
300
#FFA694
oklch(80.9% 0.109 32)
-
Step 400
400
#FC6E54
oklch(70.7% 0.179 32.2)
-
Step 500
500 (this color)
#F3340F
oklch(62.6% 0.229 32.2)
-
Step 600
600
#D22500
oklch(55.6% 0.21 32.2)
-
Step 700
700
#B21E00
oklch(49.2% 0.185 32.2)
-
Step 800
800
#931700
oklch(42.7% 0.161 32.2)
-
Step 900
900
#7C1200
oklch(37.8% 0.142 32.3)
-
Step 950
950
#4A0C03
oklch(26.9% 0.094 32.4)
#F3340F 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) | #736500 | 0.245 |
| Deuteranopia (no green cones) | #A18F00 | 0.219 |
| Tritanopia (no blue cones) | #FF0030 | 0.043 |
| Achromatopsia (no color) | #808080 | 0.231 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F3340F
#F3340F
oklch(62.6% 0.229 32.2)
- #0099AE
#0099AE
oklch(62.7% 0.109 211.7)
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 #F3340F, closest first.
No curated palette has a color within ΔE 0.04 of #F3340F.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vermillion #F4320C ΔE 0.002
- Tomato Red #EC2D01 ΔE 0.018
- Red Orange #FD3C06 ΔE 0.024
- Orangey Red #FA4224 ΔE 0.025
- Fire Engine Red #FE0002 ΔE 0.031
- Orangered #FE420F ΔE 0.031
- Red #FF0000 ΔE 0.031
- Bright Red #FF000D ΔE 0.032
Use #F3340F 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.