#EF3957
Closest named color: Red Pink (#FA2A55). oklch(63% 0.216 17.4), rgb(239, 57, 87).
Aa
Black text reads best on this color (5.39:1).
About this color
#EF3957 is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.216 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Red Pink (#FA2A55), ΔE 0.022 away. Black text reads best on it, at 5.39:1.
| Hue family | Reds |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.216) |
| Temperature | warm |
| Nearest name | Red Pink (#FA2A55) |
| Black text | 5.39:1 |
| White text | 3.89:1 |
Values
| HEX | #EF3957 |
| RGB | rgb(239, 57, 87) |
| HSL | hsl(350, 85%, 58%) |
| OKLCH | oklch(63% 0.216 17.4) |
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 #EF3957 | 3.89:1 | AA large text | Lc -70.3 | Content text, not long reading |
| Black text on #EF3957 | 5.39:1 | AA | Lc 39.2 | Non-text elements, placeholder text |
| #EF3957 text on white | 3.89:1 | AA large text | Lc 64.8 | Content text, not long reading |
| #EF3957 text on black | 5.39:1 | AA | Lc -36.8 | 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
#FFF2F2
oklch(97.1% 0.014 17.4)
-
Step 100
100
#FEE2E2
oklch(93.6% 0.031 17.7)
-
Step 200
200
#FECACB
oklch(88.5% 0.059 17)
-
Step 300
300
#FDA5A8
oklch(81% 0.105 17.4)
-
Step 400
400
#F76E79
oklch(70.7% 0.168 17.6)
-
Step 500
500 (this color)
#EF3957
oklch(63% 0.216 17.4)
-
Step 600
600
#D60040
oklch(55.6% 0.222 17.4)
-
Step 700
700
#B50035
oklch(49% 0.196 17.2)
-
Step 800
800
#96002A
oklch(42.7% 0.171 17.4)
-
Step 900
900
#7B0D24
oklch(37.7% 0.141 17.6)
-
Step 950
950
#490D16
oklch(27.1% 0.089 17.4)
#EF3957 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) | #6E6957 | 0.238 |
| Deuteranopia (no green cones) | #9C8F52 | 0.218 |
| Tritanopia (no blue cones) | #FF0046 | 0.039 |
| Achromatopsia (no color) | #818181 | 0.218 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #EF3957
#EF3957
oklch(63% 0.216 17.4)
- #009DA0
#009DA0
oklch(63.1% 0.107 197.2)
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 #EF3957, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Pink #FA2A55 ΔE 0.022
- Imperial Red #E63946 ΔE 0.027
- Pinky Red #FC2647 ΔE 0.029
- Strawberry #FB2943 ΔE 0.030
- Paradise Pink #EF476F ΔE 0.031
- Red Pantone #EF233C ΔE 0.031
- Pink Red #F5054F ΔE 0.033
- Watermelon #FD4659 ΔE 0.036
Use #EF3957 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.