#FF4500
Named color: Orange Red. oklch(66% 0.229 35.4), rgb(255, 69, 0).
Aa
Black text reads best on this color (6.10:1).
About this color
#FF4500 is a medium-light, vivid red. In OKLCH its lightness is 66%, its chroma 0.229 and its hue 35°. Its hue sits on the warm side of the wheel. It is the named color Orange Red. Black text reads best on it, at 6.10:1.
| Hue family | Reds |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.229) |
| Temperature | warm |
| Nearest name | Orange Red |
| Black text | 6.10:1 |
| White text | 3.44:1 |
Values
| HEX | #FF4500 |
| RGB | rgb(255, 69, 0) |
| HSL | hsl(16, 100%, 50%) |
| OKLCH | oklch(66% 0.229 35.4) |
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 #FF4500 | 3.44:1 | AA large text | Lc -65.8 | Content text, not long reading |
| Black text on #FF4500 | 6.10:1 | AA | Lc 43.7 | Non-text elements, placeholder text |
| #FF4500 text on white | 3.44:1 | AA large text | Lc 60.3 | Content text, not long reading |
| #FF4500 text on black | 6.10:1 | AA | Lc -41.4 | 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
#FFE3DB
oklch(93.7% 0.033 36.5)
-
Step 200
200
#FFCBBE
oklch(88.4% 0.062 34.4)
-
Step 300
300
#FFA78F
oklch(81% 0.11 36)
-
Step 400
400
#FB6F4B
oklch(70.6% 0.179 35.5)
-
Step 500
500 (this color)
#FF4500
oklch(66% 0.229 35.4)
-
Step 600
600
#CB3500
oklch(55.6% 0.193 35.4)
-
Step 700
700
#AC2B00
oklch(49.1% 0.171 35.3)
-
Step 800
800
#8E2200
oklch(42.7% 0.148 35.4)
-
Step 900
900
#781B00
oklch(37.8% 0.132 35.3)
-
Step 950
950
#4A0D00
oklch(27% 0.094 35.3)
#FF4500 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) | #807000 | 0.237 |
| Deuteranopia (no green cones) | #AD9900 | 0.212 |
| Tritanopia (no blue cones) | #FF003C | 0.069 |
| Achromatopsia (no color) | #8A8A8A | 0.231 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #FF4500
#FF4500
oklch(66% 0.229 35.4)
- #00A3BF
#00A3BF
oklch(65.9% 0.117 215.7)
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 #FF4500, closest first.
No curated palette has a color within ΔE 0.04 of #FF4500.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Orangered #FE420F ΔE 0.007
- Blood Orange #FE4B03 ΔE 0.008
- Red Orange #FD3C06 ΔE 0.014
- Orangey Red #FA4224 ΔE 0.018
- Orange Pant #FB5607 ΔE 0.024
- Bright Orange #FF5B00 ΔE 0.034
- Vermillion #F4320C ΔE 0.036
- Light Red #FF474C ΔE 0.046
Use #FF4500 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.