#399EBB#399EBB

#399EBB is a light, moderate cyan. Relative luminance 0.289; OKLCH L 65.3% C 0.101 H 220.7°. Best body text is #000000 at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#399EBB
RGB	rgb(57, 158, 187)
HSL	hsl(193, 53%, 48%)
HSV	hsv(193, 70%, 73%)
CMYK	cmyk(69.5%, 15.5%, 0%, 26.7%)
CIE-LAB	lab(60.70, -19.57, -23.46)
CIE-LCH	lch(60.70, 30.55, 230.16°)
OKLab	oklab(65.33% -0.0762 -0.0655)
OKLCH	oklch(65.33% 0.101 220.7)
XYZ	xyz(22.8802, 28.9089, 51.3782)
Luminance	0.2891 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399EBB #BB5639

analogous

#39BB97 #399EBB #395DBB

triadic

#399EBB #BB399E #9EBB39

tetradic

#399EBB #9739BB #BB5639 #5DBB39

square

#399EBB #9739BB #BB5639 #5DBB39

split-complementary

#399EBB #BB395D #BB9739

monochromatic

#1C4F5D #2B768C #399EBB #62B7CF #91CCDD

Accessibility & contrast

On white

3.10

#399EBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.78

#399EBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399EBB

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399EBB	#FFFFFF	#000000	##000000
##399EBB	1.00	3.10	6.78	6.78
#FFFFFF	3.10	1.00	21.00	21.00
#000000	6.78	21.00	1.00	1.00
##000000	6.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8D9ABD

Deuteranopia (green-blind)

#7A8DBB

Tritanopia (blue-blind)

#00A7A7

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #399ebb;
/* rgb */ color: rgb(57, 158, 187);
/* oklch */ color: oklch(65.3% 0.101 220.7);

Tailwind

colors: {
  custom: {
    50: '#80bacf',
    500: '#399ebb',
    950: '#000000',
  },
}

SCSS

$custom: #399ebb;
$custom-light: #80bacf;
$custom-dark: #000000;

JSON

{
  "hex": "#399ebb",
  "rgb": {
    "r": 57,
    "g": 158,
    "b": 187
  },
  "hsl": {
    "h": 193.385,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.6533,
    "c": 0.10051,
    "h": 220.7
  },
  "luminance": 0.28911
}

Semantic roles & 50–950 ramp

primary

#399EBB

secondary

#C89687

accent

#6C4BDD

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #399EBB

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

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