#F36440
Closest named color: Tomato (#FF6347). oklch(67.9% 0.184 35.2), rgb(243, 100, 64).
Aa
Black text reads best on this color (6.70:1).
About this color
#F36440 is a medium-light, vivid red. In OKLCH its lightness is 68%, its chroma 0.184 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Tomato (#FF6347), ΔE 0.023 away. Black text reads best on it, at 6.70:1.
| Hue family | Reds |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.184) |
| Temperature | warm |
| Nearest name | Tomato (#FF6347) |
| Black text | 6.70:1 |
| White text | 3.13:1 |
Values
| HEX | #F36440 |
| RGB | rgb(243, 100, 64) |
| HSL | hsl(12, 88%, 60%) |
| OKLCH | oklch(67.9% 0.184 35.2) |
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 #F36440 | 3.13:1 | AA large text | Lc -62.9 | Content text, not long reading |
| Black text on #F36440 | 6.70:1 | AA | Lc 46.5 | Large or bold text, headings |
| #F36440 text on white | 3.13:1 | AA large text | Lc 57.5 | Large or bold text, headings |
| #F36440 text on black | 6.70:1 | AA | Lc -44.2 | 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 400.
-
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
#FFA790
oklch(81% 0.11 35.3)
-
Step 400
400 (this color)
#F36440
oklch(67.9% 0.184 35.2)
-
Step 500
500
#F14000
oklch(63.2% 0.22 35.3)
-
Step 600
600
#CB3400
oklch(55.5% 0.194 35.2)
-
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)
#F36440 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) | #8B7E3B | 0.186 |
| Deuteranopia (no green cones) | #AF9D3C | 0.169 |
| Tritanopia (no blue cones) | #FF435C | 0.071 |
| Achromatopsia (no color) | #929292 | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F36440
#F36440
oklch(67.9% 0.184 35.2)
- #00AAC6
#00AAC6
oklch(67.9% 0.12 215)
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 #F36440, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Tomato #FF6347 ΔE 0.023
- Burnt Sienna #E76F51 ΔE 0.028
- Orange Pant #FB5607 ΔE 0.033
- Bright Orange #FF5B00 ΔE 0.034
- Orange Pink #FF6F52 ΔE 0.035
- Pinkish Orange #FF724C ΔE 0.038
- Grapefruit #FD5956 ΔE 0.038
- Blood Orange #FE4B03 ΔE 0.043
Use #F36440 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.