#F04019
Closest named color: Vermillion (#F4320C). oklch(63.1% 0.218 33.4), rgb(240, 64, 25).
Aa
Black text reads best on this color (5.45:1).
About this color
#F04019 is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.218 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Vermillion (#F4320C), ΔE 0.015 away. Black text reads best on it, at 5.45:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.218) |
| Temperature | warm |
| Nearest name | Vermillion (#F4320C) |
| Black text | 5.45:1 |
| White text | 3.85:1 |
Values
| HEX | #F04019 |
| RGB | rgb(240, 64, 25) |
| HSL | hsl(11, 88%, 52%) |
| OKLCH | oklch(63.1% 0.218 33.4) |
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 #F04019 | 3.85:1 | AA large text | Lc -70.0 | Content text, not long reading |
| Black text on #F04019 | 5.45:1 | AA | Lc 39.6 | Non-text elements, placeholder text |
| #F04019 text on white | 3.85:1 | AA large text | Lc 64.5 | Content text, not long reading |
| #F04019 text on black | 5.45:1 | AA | Lc -37.2 | 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
#FEE3DD
oklch(93.6% 0.031 32.6)
-
Step 200
200
#FECCC0
oklch(88.6% 0.059 33.8)
-
Step 300
300
#FDA794
oklch(80.8% 0.106 33.1)
-
Step 400
400
#F87256
oklch(70.7% 0.17 33.3)
-
Step 500
500 (this color)
#F04019
oklch(63.1% 0.218 33.4)
-
Step 600
600
#CF2C00
oklch(55.6% 0.203 33.4)
-
Step 700
700
#AF2400
oklch(49.1% 0.179 33.5)
-
Step 800
800
#911C00
oklch(42.7% 0.156 33.4)
-
Step 900
900
#7A1600
oklch(37.7% 0.137 33.5)
-
Step 950
950
#490F04
oklch(27.1% 0.09 33.5)
#F04019 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) | #77690E | 0.229 |
| Deuteranopia (no green cones) | #A29004 | 0.207 |
| Tritanopia (no blue cones) | #FF003A | 0.059 |
| Achromatopsia (no color) | #828282 | 0.219 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F04019
#F04019
oklch(63.1% 0.218 33.4)
- #009AB1
#009AB1
oklch(63% 0.11 213.1)
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 #F04019, closest first.
No curated palette has a color within ΔE 0.04 of #F04019.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Vermillion #F4320C ΔE 0.015
- Orangey Red #FA4224 ΔE 0.021
- Red Orange #FD3C06 ΔE 0.024
- Tomato Red #EC2D01 ΔE 0.025
- Orangered #FE420F ΔE 0.028
- Orange Red #FF4500 ΔE 0.032
- Blood Orange #FE4B03 ΔE 0.036
- Deep Orange #DC4D01 ΔE 0.042
Use #F04019 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.