#307BAC#307BAC

#307BAC is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 55.9% C 0.105 H 241.1°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#307BAC
RGB	rgb(48, 123, 172)
HSL	hsl(204, 56%, 43%)
HSV	hsv(204, 72%, 67%)
CMYK	cmyk(72.1%, 28.5%, 0%, 32.5%)
CIE-LAB	lab(49.22, -6.50, -32.71)
CIE-LCH	lch(49.22, 33.35, 258.75°)
OKLab	oklab(55.89% -0.0509 -0.0924)
OKLCH	oklch(55.89% 0.105 241.1)
XYZ	xyz(15.7454, 17.7711, 41.6221)
Luminance	0.1777 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307BAC #AC6130

analogous

#30AC9F #307BAC #303DAC

triadic

#307BAC #AC307B #7BAC30

tetradic

#307BAC #9F30AC #AC6130 #3DAC30

square

#307BAC #9F30AC #AC6130 #3DAC30

split-complementary

#307BAC #AC303D #AC9F30

monochromatic

#15374C #23597C #307BAC #4C9ACD #7CB5DA

Accessibility & contrast

On white

4.61

#307BAC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#307BAC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #307BAC

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307BAC	#FFFFFF	#000000	##FFFFFF
##307BAC	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#647CAE

Deuteranopia (green-blind)

#5370AB

Tritanopia (blue-blind)

#00878C

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #307bac;
/* rgb */ color: rgb(48, 123, 172);
/* oklch */ color: oklch(55.9% 0.105 241.1);

Tailwind

colors: {
  custom: {
    50: '#78a1c5',
    500: '#307bac',
    950: '#000000',
  },
}

SCSS

$custom: #307bac;
$custom-light: #78a1c5;
$custom-dark: #000000;

JSON

{
  "hex": "#307bac",
  "rgb": {
    "r": 48,
    "g": 123,
    "b": 172
  },
  "hsl": {
    "h": 203.71,
    "s": 56.364,
    "l": 43.137
  },
  "oklch": {
    "l": 0.55893,
    "c": 0.10549,
    "h": 241.1
  },
  "luminance": 0.17773
}

Semantic roles & 50–950 ramp

primary

#307BAC

secondary

#C39475

accent

#8448E0

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #307BAC

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

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