#4387D8#4387D8

#4387D8 is a mid, vivid cyan. Relative luminance 0.235; OKLCH L 61.8% C 0.141 H 254.3°. Best body text is #000000 at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#4387D8
RGB	rgb(67, 135, 216)
HSL	hsl(213, 66%, 55%)
HSV	hsv(213, 69%, 85%)
CMYK	cmyk(69%, 37.5%, 0%, 15.3%)
CIE-LAB	lab(55.56, 4.79, -47.79)
CIE-LCH	lch(55.56, 48.03, 275.72°)
OKLab	oklab(61.77% -0.0381 -0.136)
OKLCH	oklch(61.77% 0.141 254.3)
XYZ	xyz(23.3688, 23.4766, 68.2523)
Luminance	0.2348 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4387D8 #D89443

analogous

#43D2D8 #4387D8 #4943D8

triadic

#4387D8 #D84387 #87D843

tetradic

#4387D8 #D843D2 #D89443 #43D849

square

#4387D8 #D843D2 #D89443 #43D849

split-complementary

#4387D8 #D84943 #D2D843

monochromatic

#1C4C85 #2669B8 #4387D8 #76A7E3 #A8C8ED

Accessibility & contrast

On white

3.69

#4387D8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.70

#4387D8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4387D8

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4387D8	#FFFFFF	#000000	##000000
##4387D8	1.00	3.69	5.70	5.70
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.70	21.00	1.00	1.00
##000000	5.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#628DDB

Deuteranopia (green-blind)

#4C7FD6

Tritanopia (blue-blind)

#009AA5

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #4387d8;
/* rgb */ color: rgb(67, 135, 216);
/* oklch */ color: oklch(61.8% 0.141 254.3);

Tailwind

colors: {
  custom: {
    50: '#87a9e4',
    500: '#4387d8',
    950: '#000000',
  },
}

SCSS

$custom: #4387d8;
$custom-light: #87a9e4;
$custom-dark: #000000;

JSON

{
  "hex": "#4387d8",
  "rgb": {
    "r": 67,
    "g": 135,
    "b": 216
  },
  "hsl": {
    "h": 212.617,
    "s": 65.639,
    "l": 55.49
  },
  "oklch": {
    "l": 0.61773,
    "c": 0.14123,
    "h": 254.3
  },
  "luminance": 0.23479
}

Semantic roles & 50–950 ramp

primary

#4387D8

secondary

#DABE9C

accent

#9B3FE9

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D0F15

muted

#7D7F84

Preview Lab

Preview with #4387D8

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

Preview Lab → · Contrast checker → · Palette generator →