#399FDA#399FDA

#399FDA is a light, vivid cyan. Relative luminance 0.307; OKLCH L 67.0% C 0.127 H 238.6°. Best body text is #000000 at 7.15:1 contrast (WCAG AA passes).

Color values

HEX	#399FDA
RGB	rgb(57, 159, 218)
HSL	hsl(202, 69%, 54%)
HSV	hsv(202, 74%, 85%)
CMYK	cmyk(73.9%, 27.1%, 0%, 14.5%)
CIE-LAB	lab(62.27, -9.78, -38.34)
CIE-LCH	lch(62.27, 39.57, 255.68°)
OKLab	oklab(67.01% -0.0662 -0.1083)
OKLCH	oklch(67.01% 0.127 238.6)
XYZ	xyz(26.7354, 30.7250, 70.8375)
Luminance	0.3073 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399FDA #DA7439

analogous

#39DAC5 #399FDA #394FDA

triadic

#399FDA #DA399F #9FDA39

tetradic

#399FDA #C539DA #DA7439 #4FDA39

square

#399FDA #C539DA #DA7439 #4FDA39

split-complementary

#399FDA #DA394F #DAC539

monochromatic

#185A81 #227EB4 #399FDA #6DB8E4 #A0D1ED

Accessibility & contrast

On white

2.94

#399FDA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.15

#399FDA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #399FDA

7.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399FDA	#FFFFFF	#000000	##000000
##399FDA	1.00	2.94	7.15	7.15
#FFFFFF	2.94	1.00	21.00	21.00
#000000	7.15	21.00	1.00	1.00
##000000	7.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#839FDD

Deuteranopia (green-blind)

#6D90D9

Tritanopia (blue-blind)

#00AEB3

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #399fda;
/* rgb */ color: rgb(57, 159, 218);
/* oklch */ color: oklch(67.0% 0.127 238.6);

Tailwind

colors: {
  custom: {
    50: '#84bbe5',
    500: '#399fda',
    950: '#000000',
  },
}

SCSS

$custom: #399fda;
$custom-light: #84bbe5;
$custom-dark: #000000;

JSON

{
  "hex": "#399fda",
  "rgb": {
    "r": 57,
    "g": 159,
    "b": 218
  },
  "hsl": {
    "h": 201.988,
    "s": 68.511,
    "l": 53.922
  },
  "oklch": {
    "l": 0.67007,
    "c": 0.12689,
    "h": 238.6
  },
  "luminance": 0.30728
}

Semantic roles & 50–950 ramp

primary

#399FDA

secondary

#DAAE95

accent

#7D3CEB

background

#F8FBFE

surface

#F0F6FC

border

#CBD0D5

text

#0C1116

muted

#7D8084

Preview Lab

Preview with #399FDA

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

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