#F55729
Closest named color: Orange Pant (#FB5607). oklch(66.4% 0.202 36.2), rgb(245, 87, 41).
Aa
Black text reads best on this color (6.27:1).
About this color
#F55729 is a medium-light, vivid red. In OKLCH its lightness is 66%, its chroma 0.202 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Orange Pant (#FB5607), ΔE 0.016 away. Black text reads best on it, at 6.27:1.
| Hue family | Reds |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.202) |
| Temperature | warm |
| Nearest name | Orange Pant (#FB5607) |
| Black text | 6.27:1 |
| White text | 3.34:1 |
Values
| HEX | #F55729 |
| RGB | rgb(245, 87, 41) |
| HSL | hsl(14, 91%, 56%) |
| OKLCH | oklch(66.4% 0.202 36.2) |
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 #F55729 | 3.34:1 | AA large text | Lc -65.2 | Content text, not long reading |
| Black text on #F55729 | 6.27:1 | AA | Lc 44.3 | Non-text elements, placeholder text |
| #F55729 text on white | 3.34:1 | AA large text | Lc 59.8 | Large or bold text, headings |
| #F55729 text on black | 6.27:1 | AA | Lc -41.9 | 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
#FEF3EF
oklch(97.2% 0.013 41.2)
-
Step 100
100
#FCE4DD
oklch(93.6% 0.028 36.9)
-
Step 200
200
#FBCDC0
oklch(88.5% 0.055 36.3)
-
Step 300
300
#F9AA94
oklch(80.9% 0.099 36.2)
-
Step 400
400
#F27857
oklch(70.8% 0.158 36.1)
-
Step 500
500 (this color)
#F55729
oklch(66.4% 0.202 36.2)
-
Step 600
600
#CA3800
oklch(55.7% 0.19 36.2)
-
Step 700
700
#AB2E00
oklch(49.2% 0.168 36.2)
-
Step 800
800
#8D2400
oklch(42.7% 0.146 36.1)
-
Step 900
900
#771D00
oklch(37.8% 0.129 36.2)
-
Step 950
950
#471204
oklch(27% 0.084 36.1)
#F55729 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) | #857621 | 0.206 |
| Deuteranopia (no green cones) | #AC9A20 | 0.188 |
| Tritanopia (no blue cones) | #FF274E | 0.078 |
| Achromatopsia (no color) | #8C8C8C | 0.203 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F55729
#F55729
oklch(66.4% 0.202 36.2)
- #00A4C1
#00A4C1
oklch(66.2% 0.118 216.3)
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 #F55729, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Orange Pant #FB5607 ΔE 0.016
- Blood Orange #FE4B03 ΔE 0.022
- Bright Orange #FF5B00 ΔE 0.026
- Orange Red #FF4500 ΔE 0.028
- Orangered #FE420F ΔE 0.030
- Orangey Red #FA4224 ΔE 0.030
- Tomato #FF6347 ΔE 0.036
- Red Orange #FD3C06 ΔE 0.036
Use #F55729 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.