#EF3E48

Closest named color: Imperial Red (#E63946). oklch(63.2% 0.212 23), rgb(239, 62, 72).

Aa

Black text reads best on this color (5.45:1).

About this color

#EF3E48 is a medium-light, vivid red. In OKLCH its lightness is 63%, its chroma 0.212 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Imperial Red (#E63946), ΔE 0.020 away. Black text reads best on it, at 5.45:1.

Hue familyReds
Lightnessmedium-light (63%)
Chromavivid (0.212)
Temperaturewarm
Nearest nameImperial Red (#E63946)
Black text5.45:1
White text3.85:1

Values

HEX#EF3E48
RGBrgb(239, 62, 72)
HSLhsl(357, 85%, 59%)
OKLCHoklch(63.2% 0.212 23)

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.

PairWCAG 2ResultAPCAAPCA guidance
White text on #EF3E48 3.85:1 AA large text Lc -70.0 Content text, not long reading
Black text on #EF3E48 5.45:1 AA Lc 39.6 Non-text elements, placeholder text
#EF3E48 text on white 3.85:1 AA large text Lc 64.5 Content text, not long reading
#EF3E48 text on black 5.45:1 AA Lc -37.1 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.

  1. Step 50

    50

    #FFF2F1

    oklch(97.1% 0.014 22.8)

  2. Step 100

    100

    #FEE3E0

    oklch(93.7% 0.03 25.3)

  3. Step 200

    200

    #FDCBC7

    oklch(88.5% 0.057 23.6)

  4. Step 300

    300

    #FDA6A1

    oklch(81% 0.104 23.2)

  5. Step 400

    400

    #F7706E

    oklch(70.7% 0.167 23.1)

  6. Step 500

    500 (this color)

    #EF3E48

    oklch(63.2% 0.212 23)

  7. Step 600

    600

    #D8002C

    oklch(55.7% 0.225 23.1)

  8. Step 700

    700

    #B70024

    oklch(49.2% 0.198 23)

  9. Step 800

    800

    #97001C

    oklch(42.7% 0.172 22.9)

  10. Step 900

    900

    #7B111B

    oklch(37.8% 0.139 23.1)

  11. Step 950

    950

    #480E11

    oklch(26.9% 0.087 22.6)

Export this scale for Tailwind in the Tailwind colors tool

#EF3E48 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.

VisionSeen asShift (ΔE)
Protanopia (no red cones)#726A470.232
Deuteranopia (no green cones)#9E90420.213
Tritanopia (no blue cones)#FF00440.043
Achromatopsia (no color)#8282820.214

Harmonies

Hue rotations in OKLCH that keep this color's lightness and chroma.

Complementary

The opposite hue (180°).

  • #EF3E48

    #EF3E48

    oklch(63.2% 0.212 23)

  • #009CA7

    #009CA7

    oklch(63.1% 0.108 203.6)

Open the complementary palette in the generator

Analogous

Neighbouring hues, 30° either side.

  • #EF3E48

    #EF3E48

    oklch(63.2% 0.212 23)

  • #E33F95

    #E33F95

    oklch(63.2% 0.213 352.9)

  • #D26800

    #D26800

    oklch(63.2% 0.161 52.9)

Open the analogous palette in the generator

Split complementary

The two hues beside the complement (150° and 210°).

  • #EF3E48

    #EF3E48

    oklch(63.2% 0.212 23)

  • #00A183

    #00A183

    oklch(63.2% 0.121 173.2)

  • #0096CB

    #0096CB

    oklch(63.3% 0.13 232.6)

Open the split complementary palette in the generator

Triadic

Three hues spaced 120° apart.

  • #EF3E48

    #EF3E48

    oklch(63.2% 0.212 23)

  • #00A710

    #00A710

    oklch(63.1% 0.211 143)

  • #4681FF

    #4681FF

    oklch(63.1% 0.198 263.1)

Open the triadic palette in the generator

Square

Four hues spaced 90° apart.

  • #EF3E48

    #EF3E48

    oklch(63.2% 0.212 23)

  • #8B9200

    #8B9200

    oklch(63.3% 0.141 113.1)

  • #009CA7

    #009CA7

    oklch(63.1% 0.108 203.6)

  • #9366FC

    #9366FC

    oklch(63.2% 0.213 293.1)

Open the square palette in the generator

Palettes with this color

Curated palettes that contain a color within ΔE 0.04 (OKLab) of #EF3E48, closest first.

Similar named colors

The eight closest entries in our named color list, with their ΔE distance.

Use #EF3E48 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.