#4388CC#4388CC

#4388CC is a mid, vivid cyan. Relative luminance 0.232; OKLCH L 61.3% C 0.125 H 250.3°. Best body text is #000000 at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#4388CC
RGB	rgb(67, 136, 204)
HSL	hsl(210, 57%, 53%)
HSV	hsv(210, 67%, 80%)
CMYK	cmyk(67.2%, 33.3%, 0%, 20%)
CIE-LAB	lab(55.24, 0.01, -41.53)
CIE-LCH	lch(55.24, 41.53, 270.01°)
OKLab	oklab(61.32% -0.0422 -0.1177)
OKLCH	oklch(61.32% 0.125 250.3)
XYZ	xyz(22.0139, 23.1590, 60.4250)
Luminance	0.2316 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4388CC #CC8743

analogous

#43CCCB #4388CC #4343CC

triadic

#4388CC #CC4388 #88CC43

tetradic

#4388CC #CB43CC #CC8743 #43CC43

square

#4388CC #CB43CC #CC8743 #43CC43

split-complementary

#4388CC #CC4343 #CCCB43

monochromatic

#204B75 #2D69A5 #4388CC #73A6D9 #A3C5E6

Accessibility & contrast

On white

3.73

#4388CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.63

#4388CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4388CC

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4388CC	#FFFFFF	#000000	##000000
##4388CC	1.00	3.73	5.63	5.63
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.63	21.00	1.00	1.00
##000000	5.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A8BCF

Deuteranopia (green-blind)

#577ECB

Tritanopia (blue-blind)

#0098A1

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #4388cc;
/* rgb */ color: rgb(67, 136, 204);
/* oklch */ color: oklch(61.3% 0.125 250.3);

Tailwind

colors: {
  custom: {
    50: '#85aadc',
    500: '#4388cc',
    950: '#000000',
  },
}

SCSS

$custom: #4388cc;
$custom-light: #85aadc;
$custom-dark: #000000;

JSON

{
  "hex": "#4388cc",
  "rgb": {
    "r": 67,
    "g": 136,
    "b": 204
  },
  "hsl": {
    "h": 209.781,
    "s": 57.322,
    "l": 53.137
  },
  "oklch": {
    "l": 0.6132,
    "c": 0.12503,
    "h": 250.3
  },
  "luminance": 0.23161
}

Semantic roles & 50–950 ramp

primary

#4388CC

secondary

#D3B598

accent

#9347E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4388CC

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

Preview Lab → · Contrast checker → · Palette generator →