#F35A37
Closest named color: Orange Pant (#FB5607). oklch(66.5% 0.195 34.3), rgb(243, 90, 55).
Aa
Black text reads best on this color (6.32:1).
About this color
#F35A37 is a medium-light, vivid red. In OKLCH its lightness is 67%, its chroma 0.195 and its hue 34°. Its hue sits on the warm side of the wheel. The nearest named color is Orange Pant (#FB5607), ΔE 0.025 away. Black text reads best on it, at 6.32:1.
| Hue family | Reds |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.195) |
| Temperature | warm |
| Nearest name | Orange Pant (#FB5607) |
| Black text | 6.32:1 |
| White text | 3.31:1 |
Values
| HEX | #F35A37 |
| RGB | rgb(243, 90, 55) |
| HSL | hsl(11, 89%, 58%) |
| OKLCH | oklch(66.5% 0.195 34.3) |
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 #F35A37 | 3.31:1 | AA large text | Lc -65.0 | Content text, not long reading |
| Black text on #F35A37 | 6.32:1 | AA | Lc 44.5 | Non-text elements, placeholder text |
| #F35A37 text on white | 3.31:1 | AA large text | Lc 59.6 | Large or bold text, headings |
| #F35A37 text on black | 6.32:1 | AA | Lc -42.1 | 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
#FEF3F0
oklch(97.2% 0.013 35.7)
-
Step 100
100
#FCE4DE
oklch(93.7% 0.028 34.3)
-
Step 200
200
#FACDC2
oklch(88.4% 0.053 34)
-
Step 300
300
#F7AA98
oklch(80.8% 0.095 33.7)
-
Step 400
400
#F0795D
oklch(70.7% 0.153 34.4)
-
Step 500
500 (this color)
#F35A37
oklch(66.5% 0.195 34.3)
-
Step 600
600
#CD3000
oklch(55.5% 0.199 34.2)
-
Step 700
700
#AE2700
oklch(49.1% 0.176 34.2)
-
Step 800
800
#901F00
oklch(42.8% 0.153 34.3)
-
Step 900
900
#761D07
oklch(37.6% 0.127 34.2)
-
Step 950
950
#461308
oklch(27% 0.081 33.9)
#F35A37 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) | #857832 | 0.200 |
| Deuteranopia (no green cones) | #AB9A31 | 0.183 |
| Tritanopia (no blue cones) | #FF3153 | 0.072 |
| Achromatopsia (no color) | #8D8D8D | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F35A37
#F35A37
oklch(66.5% 0.195 34.3)
- #00A5C0
#00A5C0
oklch(66.4% 0.117 214.8)
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 #F35A37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Orange Pant #FB5607 ΔE 0.025
- Blood Orange #FE4B03 ΔE 0.030
- Tomato #FF6347 ΔE 0.032
- Bright Orange #FF5B00 ΔE 0.033
- Orangey Red #FA4224 ΔE 0.034
- Orange Red #FF4500 ΔE 0.035
- Orangered #FE420F ΔE 0.036
- Grapefruit #FD5956 ΔE 0.037
Use #F35A37 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.