#F04400
Closest named color: Vermillion (#F4320C). oklch(63.4% 0.216 36.1), rgb(240, 68, 0).
Aa
Black text reads best on this color (5.53:1).
About this color
#F04400 is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.216 and its hue 36°. Its hue sits on the warm side of the wheel. The nearest named color is Vermillion (#F4320C), ΔE 0.023 away. Black text reads best on it, at 5.53:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.216) |
| Temperature | warm |
| Nearest name | Vermillion (#F4320C) |
| Black text | 5.53:1 |
| White text | 3.79:1 |
Values
| HEX | #F04400 |
| RGB | rgb(240, 68, 0) |
| HSL | hsl(17, 100%, 47%) |
| OKLCH | oklch(63.4% 0.216 36.1) |
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 #F04400 | 3.79:1 | AA large text | Lc -69.5 | Content text, not long reading |
| Black text on #F04400 | 5.53:1 | AA | Lc 40.1 | Non-text elements, placeholder text |
| #F04400 text on white | 3.79:1 | AA large text | Lc 64.0 | Content text, not long reading |
| #F04400 text on black | 5.53:1 | AA | Lc -37.7 | 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
#FDE3DC
oklch(93.5% 0.03 35.5)
-
Step 200
200
#FDCCBF
oklch(88.4% 0.059 35.3)
-
Step 300
300
#FDA891
oklch(80.9% 0.106 35.8)
-
Step 400
400
#F77350
oklch(70.7% 0.17 35.9)
-
Step 500
500 (this color)
#F04400
oklch(63.4% 0.216 36.1)
-
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
#481001
oklch(26.9% 0.089 36.8)
#F04400 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) | #7A6A00 | 0.222 |
| Deuteranopia (no green cones) | #A49100 | 0.199 |
| Tritanopia (no blue cones) | #FF003B | 0.069 |
| Achromatopsia (no color) | #838383 | 0.218 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F04400
#F04400
oklch(63.4% 0.216 36.1)
- #009BB6
#009BB6
oklch(63.5% 0.113 215.9)
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 #F04400, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vermillion #F4320C ΔE 0.023
- Orangey Red #FA4224 ΔE 0.024
- Red Orange #FD3C06 ΔE 0.025
- Orangered #FE420F ΔE 0.027
- Orange Red #FF4500 ΔE 0.029
- Blood Orange #FE4B03 ΔE 0.031
- Tomato Red #EC2D01 ΔE 0.031
- Deep Orange #DC4D01 ΔE 0.038
Use #F04400 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.