#399DCB#399DCB

#399DCB is a light, moderate cyan. Relative luminance 0.293; OKLCH L 65.8% C 0.113 H 232.3°. Best body text is #000000 at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#399DCB
RGB	rgb(57, 157, 203)
HSL	hsl(199, 58%, 51%)
HSV	hsv(199, 72%, 80%)
CMYK	cmyk(71.9%, 22.7%, 0%, 20.4%)
CIE-LAB	lab(61.04, -13.77, -31.91)
CIE-LCH	lch(61.04, 34.76, 246.66°)
OKLab	oklab(65.81% -0.0693 -0.0897)
OKLCH	oklch(65.81% 0.113 232.3)
XYZ	xyz(24.5195, 29.2928, 60.8502)
Luminance	0.2930 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399DCB #CB6739

analogous

#39CBB0 #399DCB #3954CB

triadic

#399DCB #CB399D #9DCB39

tetradic

#399DCB #B039CB #CB6739 #54CB39

square

#399DCB #B039CB #CB6739 #54CB39

split-complementary

#399DCB #CB3954 #CBB039

monochromatic

#1D546D #29799D #399DCB #69B5D8 #9ACDE4

Accessibility & contrast

On white

3.06

#399DCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.86

#399DCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399DCB

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399DCB	#FFFFFF	#000000	##000000
##399DCB	1.00	3.06	6.86	6.86
#FFFFFF	3.06	1.00	21.00	21.00
#000000	6.86	21.00	1.00	1.00
##000000	6.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#869BCD

Deuteranopia (green-blind)

#728DCA

Tritanopia (blue-blind)

#00A9AC

Achromatopsia (no color)

#939393

Design tokens & code

CSS

--color: #399dcb;
/* rgb */ color: rgb(57, 157, 203);
/* oklch */ color: oklch(65.8% 0.113 232.3);

Tailwind

colors: {
  custom: {
    50: '#82badb',
    500: '#399dcb',
    950: '#000000',
  },
}

SCSS

$custom: #399dcb;
$custom-light: #82badb;
$custom-dark: #000000;

JSON

{
  "hex": "#399dcb",
  "rgb": {
    "r": 57,
    "g": 157,
    "b": 203
  },
  "hsl": {
    "h": 198.904,
    "s": 58.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.65811,
    "c": 0.11334,
    "h": 232.3
  },
  "luminance": 0.29296
}

Semantic roles & 50–950 ramp

primary

#399DCB

secondary

#D0A490

accent

#7746E2

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #399DCB

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

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