#F33540
Closest named color: Strawberry (#FB2943). oklch(63.1% 0.224 23.9), rgb(243, 53, 64).
Aa
Black text reads best on this color (5.39:1).
About this color
#F33540 is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.224 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Strawberry (#FB2943), ΔE 0.017 away. Black text reads best on it, at 5.39:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.224) |
| Temperature | warm |
| Nearest name | Strawberry (#FB2943) |
| Black text | 5.39:1 |
| White text | 3.89:1 |
Values
| HEX | #F33540 |
| RGB | rgb(243, 53, 64) |
| HSL | hsl(357, 89%, 58%) |
| OKLCH | oklch(63.1% 0.224 23.9) |
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 #F33540 | 3.89:1 | AA large text | Lc -70.1 | Content text, not long reading |
| Black text on #F33540 | 5.39:1 | AA | Lc 39.4 | Non-text elements, placeholder text |
| #F33540 text on white | 3.89:1 | AA large text | Lc 64.7 | Content text, not long reading |
| #F33540 text on black | 5.39:1 | AA | Lc -37.0 | 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
#FFF2F1
oklch(97.1% 0.014 22.8)
-
Step 100
100
#FFE2E0
oklch(93.6% 0.032 22.5)
-
Step 200
200
#FFCAC6
oklch(88.4% 0.061 23.4)
-
Step 300
300
#FFA59F
oklch(81% 0.108 23.9)
-
Step 400
400
#FB6D69
oklch(70.8% 0.175 24.2)
-
Step 500
500 (this color)
#F33540
oklch(63.1% 0.224 23.9)
-
Step 600
600
#D80028
oklch(55.6% 0.225 24)
-
Step 700
700
#B70020
oklch(49.1% 0.199 24)
-
Step 800
800
#970019
oklch(42.6% 0.172 23.9)
-
Step 900
900
#7D0916
oklch(37.7% 0.146 24)
-
Step 950
950
#4A0B0E
oklch(27% 0.093 23.9)
#F33540 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) | #70673E | 0.245 |
| Deuteranopia (no green cones) | #9F9039 | 0.224 |
| Tritanopia (no blue cones) | #FF003B | 0.032 |
| Achromatopsia (no color) | #818181 | 0.225 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #F33540
#F33540
oklch(63.1% 0.224 23.9)
- #009CA7
#009CA7
oklch(63.1% 0.108 203.6)
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 #F33540, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Strawberry #FB2943 ΔE 0.017
- Red Pantone #EF233C ΔE 0.021
- Pinky Red #FC2647 ΔE 0.022
- Imperial Red #E63946 ΔE 0.025
- Cherry Red #F7022A ΔE 0.030
- Neon Red #FF073A ΔE 0.030
- Red Pink #FA2A55 ΔE 0.031
- Vermillion #F4320C ΔE 0.034
Use #F33540 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.