#399FDB#399FDB

#399FDB is a light, vivid cyan. Relative luminance 0.308; OKLCH L 67.1% C 0.128 H 239.0°. Best body text is #000000 at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#399FDB
RGB	rgb(57, 159, 219)
HSL	hsl(202, 69%, 54%)
HSV	hsv(202, 74%, 86%)
CMYK	cmyk(74%, 27.4%, 0%, 14.1%)
CIE-LAB	lab(62.32, -9.44, -38.83)
CIE-LCH	lch(62.32, 39.96, 256.33°)
OKLab	oklab(67.06% -0.0658 -0.1097)
OKLCH	oklch(67.06% 0.128 239)
XYZ	xyz(26.8666, 30.7775, 71.5288)
Luminance	0.3078 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399FDB #DB7539

analogous

#39DBC6 #399FDB #394EDB

triadic

#399FDB #DB399F #9FDB39

tetradic

#399FDB #C639DB #DB7539 #4EDB39

square

#399FDB #C639DB #DB7539 #4EDB39

split-complementary

#399FDB #DB394E #DBC639

monochromatic

#185B82 #217FB6 #399FDB #6DB8E4 #A1D1EE

Accessibility & contrast

On white

2.93

#399FDB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.16

#399FDB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #399FDB

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399FDB	#FFFFFF	#000000	##000000
##399FDB	1.00	2.93	7.16	7.16
#FFFFFF	2.93	1.00	21.00	21.00
#000000	7.16	21.00	1.00	1.00
##000000	7.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#839FDE

Deuteranopia (green-blind)

#6D90DA

Tritanopia (blue-blind)

#00AEB4

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #399fdb;
/* rgb */ color: rgb(57, 159, 219);
/* oklch */ color: oklch(67.1% 0.128 239.0);

Tailwind

colors: {
  custom: {
    50: '#85bbe6',
    500: '#399fdb',
    950: '#000000',
  },
}

SCSS

$custom: #399fdb;
$custom-light: #85bbe6;
$custom-dark: #000000;

JSON

{
  "hex": "#399fdb",
  "rgb": {
    "r": 57,
    "g": 159,
    "b": 219
  },
  "hsl": {
    "h": 202.222,
    "s": 69.231,
    "l": 54.118
  },
  "oklch": {
    "l": 0.67057,
    "c": 0.12792,
    "h": 239
  },
  "luminance": 0.30781
}

Semantic roles & 50–950 ramp

primary

#399FDB

secondary

#DAAF95

accent

#7D3CEC

background

#F8FBFE

surface

#F0F6FC

border

#CBD0D5

text

#0C1116

muted

#7D8084

Preview Lab

Preview with #399FDB

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

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