#4088CC#4088CC

#4088CC is a mid, vivid cyan. Relative luminance 0.231; OKLCH L 61.2% C 0.126 H 249.5°. Best body text is #000000 at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#4088CC
RGB	rgb(64, 136, 204)
HSL	hsl(209, 58%, 53%)
HSV	hsv(209, 69%, 80%)
CMYK	cmyk(68.6%, 33.3%, 0%, 20%)
CIE-LAB	lab(55.13, -0.47, -41.71)
CIE-LCH	lch(55.13, 41.71, 269.36°)
OKLab	oklab(61.21% -0.0442 -0.1182)
OKLCH	oklch(61.21% 0.126 249.5)
XYZ	xyz(21.8135, 23.0556, 60.4156)
Luminance	0.2306 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4088CC #CC8440

analogous

#40CCCA #4088CC #4042CC

triadic

#4088CC #CC4088 #88CC40

tetradic

#4088CC #CA40CC #CC8440 #42CC40

square

#4088CC #CA40CC #CC8440 #42CC40

split-complementary

#4088CC #CC4042 #CCCA40

monochromatic

#1F4A73 #2C69A3 #4088CC #70A6D9 #A1C4E6

Accessibility & contrast

On white

3.74

#4088CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.61

#4088CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4088CC

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4088CC	#FFFFFF	#000000	##000000
##4088CC	1.00	3.74	5.61	5.61
#FFFFFF	3.74	1.00	21.00	21.00
#000000	5.61	21.00	1.00	1.00
##000000	5.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A8BCF

Deuteranopia (green-blind)

#567ECB

Tritanopia (blue-blind)

#0098A0

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #4088cc;
/* rgb */ color: rgb(64, 136, 204);
/* oklch */ color: oklch(61.2% 0.126 249.5);

Tailwind

colors: {
  custom: {
    50: '#84aadc',
    500: '#4088cc',
    950: '#000000',
  },
}

SCSS

$custom: #4088cc;
$custom-light: #84aadc;
$custom-dark: #000000;

JSON

{
  "hex": "#4088cc",
  "rgb": {
    "r": 64,
    "g": 136,
    "b": 204
  },
  "hsl": {
    "h": 209.143,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.61207,
    "c": 0.12623,
    "h": 249.5
  },
  "luminance": 0.23058
}

Semantic roles & 50–950 ramp

primary

#4088CC

secondary

#D2B395

accent

#9247E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4088CC

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

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