#00A4FF#00A4FF

#00A4FF is a light, vivid cyan. Relative luminance 0.338; OKLCH L 69.4% C 0.173 H 244.6°. Best body text is #000000 at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#00A4FF
RGB	rgb(0, 164, 255)
HSL	hsl(201, 100%, 50%)
HSV	hsv(201, 100%, 100%)
CMYK	cmyk(100%, 35.7%, 0%, 0%)
CIE-LAB	lab(64.78, -2.83, -54.78)
CIE-LCH	lch(64.78, 54.85, 267.04°)
OKLab	oklab(69.36% -0.0743 -0.1564)
OKLCH	oklch(69.36% 0.173 244.6)
XYZ	xyz(31.3183, 33.7666, 99.4553)
Luminance	0.3377 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#00A4FF #FF5B00

analogous

#00FFDB #00A4FF #0024FF

triadic

#00A4FF #FF00A4 #A4FF00

tetradic

#00A4FF #DB00FF #FF5B00 #24FF00

square

#00A4FF #DB00FF #FF5B00 #24FF00

split-complementary

#00A4FF #FF0024 #FFDB00

monochromatic

#005585 #007DC2 #00A4FF #3DBAFF #7AD0FF

Accessibility & contrast

On white

2.71

#00A4FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.75

#00A4FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #00A4FF

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##00A4FF	#FFFFFF	#000000	##000000
##00A4FF	1.00	2.71	7.75	7.75
#FFFFFF	2.71	1.00	21.00	21.00
#000000	7.75	21.00	1.00	1.00
##000000	7.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#77A8FF

Deuteranopia (green-blind)

#5594FD

Tritanopia (blue-blind)

#00BAC5

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #00a4ff;
/* rgb */ color: rgb(0, 164, 255);
/* oklch */ color: oklch(69.4% 0.173 244.6);

Tailwind

colors: {
  custom: {
    50: '#81beff',
    500: '#00a4ff',
    950: '#000000',
  },
}

SCSS

$custom: #00a4ff;
$custom-light: #81beff;
$custom-dark: #000000;

JSON

{
  "hex": "#00a4ff",
  "rgb": {
    "r": 0,
    "g": 164,
    "b": 255
  },
  "hsl": {
    "h": 201.412,
    "s": 100,
    "l": 50
  },
  "oklch": {
    "l": 0.69362,
    "c": 0.17316,
    "h": 244.6
  },
  "luminance": 0.33771
}

Semantic roles & 50–950 ramp

primary

#00A4FF

secondary

#E79D74

accent

#7529FF

background

#F9FBFF

surface

#F1F6FF

border

#CBD0D7

text

#0D1218

muted

#7E8186

Preview Lab

Preview with #00A4FF

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

Preview Lab → · Contrast checker → · Palette generator →