#4387D9#4387D9

#4387D9 is a mid, vivid cyan. Relative luminance 0.235; OKLCH L 61.8% C 0.143 H 254.6°. Best body text is #000000 at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#4387D9
RGB	rgb(67, 135, 217)
HSL	hsl(213, 66%, 56%)
HSV	hsv(213, 69%, 85%)
CMYK	cmyk(69.1%, 37.8%, 0%, 14.9%)
CIE-LAB	lab(55.61, 5.14, -48.26)
CIE-LCH	lch(55.61, 48.54, 276.08°)
OKLab	oklab(61.83% -0.0379 -0.1374)
OKLCH	oklch(61.83% 0.143 254.6)
XYZ	xyz(23.4985, 23.5285, 68.9352)
Luminance	0.2353 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4387D9 #D99543

analogous

#43D2D9 #4387D9 #4A43D9

triadic

#4387D9 #D94387 #87D943

tetradic

#4387D9 #D943D2 #D99543 #43D94A

square

#4387D9 #D943D2 #D99543 #43D94A

split-complementary

#4387D9 #D94A43 #D2D943

monochromatic

#1B4C86 #2568B9 #4387D9 #76A7E3 #A9C8EE

Accessibility & contrast

On white

3.68

#4387D9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.71

#4387D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4387D9

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4387D9	#FFFFFF	#000000	##000000
##4387D9	1.00	3.68	5.71	5.71
#FFFFFF	3.68	1.00	21.00	21.00
#000000	5.71	21.00	1.00	1.00
##000000	5.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#628DDC

Deuteranopia (green-blind)

#4B7FD7

Tritanopia (blue-blind)

#009AA5

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #4387d9;
/* rgb */ color: rgb(67, 135, 217);
/* oklch */ color: oklch(61.8% 0.143 254.6);

Tailwind

colors: {
  custom: {
    50: '#88a9e5',
    500: '#4387d9',
    950: '#000000',
  },
}

SCSS

$custom: #4387d9;
$custom-light: #88a9e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4387d9",
  "rgb": {
    "r": 67,
    "g": 135,
    "b": 217
  },
  "hsl": {
    "h": 212.8,
    "s": 66.372,
    "l": 55.686
  },
  "oklch": {
    "l": 0.61831,
    "c": 0.14251,
    "h": 254.6
  },
  "luminance": 0.23531
}

Semantic roles & 50–950 ramp

primary

#4387D9

secondary

#DBBF9D

accent

#9C3FE9

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4387D9

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

Preview Lab → · Contrast checker → · Palette generator →