#4387DD#4387DD

#4387DD is a light, vivid cyan. Relative luminance 0.237; OKLCH L 62.1% C 0.148 H 255.5°. Best body text is #000000 at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#4387DD
RGB	rgb(67, 135, 221)
HSL	hsl(214, 69%, 56%)
HSV	hsv(214, 70%, 87%)
CMYK	cmyk(69.7%, 38.9%, 0%, 13.3%)
CIE-LAB	lab(55.83, 6.55, -50.17)
CIE-LCH	lch(55.83, 50.60, 277.43°)
OKLab	oklab(62.07% -0.0369 -0.143)
OKLCH	oklch(62.07% 0.148 255.5)
XYZ	xyz(24.0251, 23.7391, 71.7085)
Luminance	0.2374 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4387DD #DD9943

analogous

#43D4DD #4387DD #4C43DD

triadic

#4387DD #DD4387 #87DD43

tetradic

#4387DD #DD43D4 #DD9943 #43DD4C

square

#4387DD #DD43D4 #DD9943 #43DD4C

split-complementary

#4387DD #DD4C43 #D4DD43

monochromatic

#194C8C #2368C0 #4387DD #77A8E6 #ABC9F0

Accessibility & contrast

On white

3.65

#4387DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.75

#4387DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4387DD

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4387DD	#FFFFFF	#000000	##000000
##4387DD	1.00	3.65	5.75	5.75
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.75	21.00	1.00	1.00
##000000	5.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F8EE0

Deuteranopia (green-blind)

#487FDB

Tritanopia (blue-blind)

#009BA7

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #4387dd;
/* rgb */ color: rgb(67, 135, 221);
/* oklch */ color: oklch(62.1% 0.148 255.5);

Tailwind

colors: {
  custom: {
    50: '#88a9e8',
    500: '#4387dd',
    950: '#000000',
  },
}

SCSS

$custom: #4387dd;
$custom-light: #88a9e8;
$custom-dark: #000000;

JSON

{
  "hex": "#4387dd",
  "rgb": {
    "r": 67,
    "g": 135,
    "b": 221
  },
  "hsl": {
    "h": 213.506,
    "s": 69.369,
    "l": 56.471
  },
  "oklch": {
    "l": 0.62066,
    "c": 0.14766,
    "h": 255.5
  },
  "luminance": 0.23742
}

Semantic roles & 50–950 ramp

primary

#4387DD

secondary

#DEC29E

accent

#9E3CEC

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4387DD

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

Preview Lab → · Contrast checker → · Palette generator →