#4388EF#4388EF

#4388EF is a light, vivid blue. Relative luminance 0.250; OKLCH L 63.4% C 0.170 H 258.4°. Best body text is #000000 at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#4388EF
RGB	rgb(67, 136, 239)
HSL	hsl(216, 84%, 60%)
HSV	hsv(216, 72%, 94%)
CMYK	cmyk(72%, 43.1%, 0%, 6.3%)
CIE-LAB	lab(57.11, 12.33, -58.16)
CIE-LCH	lch(57.11, 59.45, 281.96°)
OKLab	oklab(63.38% -0.0341 -0.1664)
OKLCH	oklch(63.38% 0.17 258.4)
XYZ	xyz(26.6932, 25.0307, 85.0692)
Luminance	0.2503 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4388EF #EFAA43

analogous

#43DEEF #4388EF #5443EF

triadic

#4388EF #EF4388 #88EF43

tetradic

#4388EF #EF43DE #EFAA43 #43EF54

square

#4388EF #EF43DE #EFAA43 #43EF54

split-complementary

#4388EF #EF5443 #DEEF43

monochromatic

#0E4DA9 #1366E2 #4388EF #7BACF4 #B4CFF9

Accessibility & contrast

On white

3.50

#4388EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.01

#4388EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4388EF

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4388EF	#FFFFFF	#000000	##000000
##4388EF	1.00	3.50	6.01	6.01
#FFFFFF	3.50	1.00	21.00	21.00
#000000	6.01	21.00	1.00	1.00
##000000	6.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5592F3

Deuteranopia (green-blind)

#3582ED

Tritanopia (blue-blind)

#00A0B0

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #4388ef;
/* rgb */ color: rgb(67, 136, 239);
/* oklch */ color: oklch(63.4% 0.170 258.4);

Tailwind

colors: {
  custom: {
    50: '#8baaf5',
    500: '#4388ef',
    950: '#000000',
  },
}

SCSS

$custom: #4388ef;
$custom-light: #8baaf5;
$custom-dark: #000000;

JSON

{
  "hex": "#4388ef",
  "rgb": {
    "r": 67,
    "g": 136,
    "b": 239
  },
  "hsl": {
    "h": 215.93,
    "s": 84.314,
    "l": 60
  },
  "oklch": {
    "l": 0.63384,
    "c": 0.16988,
    "h": 258.4
  },
  "luminance": 0.25034
}

Semantic roles & 50–950 ramp

primary

#4388EF

secondary

#E8CDA6

accent

#A82DFB

background

#F9FAFF

surface

#F2F4FE

border

#CCCED6

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #4388EF

Body copy rendered with the generated semantic roles for this colour.

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