#307CAD#307CAD

#307CAD is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.2% C 0.106 H 240.8°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#307CAD
RGB	rgb(48, 124, 173)
HSL	hsl(204, 57%, 43%)
HSV	hsv(204, 72%, 68%)
CMYK	cmyk(72.3%, 28.3%, 0%, 32.2%)
CIE-LAB	lab(49.57, -6.73, -32.74)
CIE-LCH	lch(49.57, 33.42, 258.38°)
OKLab	oklab(56.19% -0.0516 -0.0924)
OKLCH	oklch(56.19% 0.106 240.8)
XYZ	xyz(15.9665, 18.0590, 42.1713)
Luminance	0.1806 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307CAD #AD6130

analogous

#30AD9F #307CAD #303DAD

triadic

#307CAD #AD307C #7CAD30

tetradic

#307CAD #9F30AD #AD6130 #3DAD30

square

#307CAD #9F30AD #AD6130 #3DAD30

split-complementary

#307CAD #AD303D #AD9F30

monochromatic

#15374D #235A7D #307CAD #4D9BCE #7DB6DB

Accessibility & contrast

On white

4.55

#307CAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#307CAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307CAD

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

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

Color blindness preview

Protanopia (red-blind)

#657DAF

Deuteranopia (green-blind)

#5471AC

Tritanopia (blue-blind)

#00888D

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #307cad;
/* rgb */ color: rgb(48, 124, 173);
/* oklch */ color: oklch(56.2% 0.106 240.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#307cad",
  "rgb": {
    "r": 48,
    "g": 124,
    "b": 173
  },
  "hsl": {
    "h": 203.52,
    "s": 56.561,
    "l": 43.333
  },
  "oklch": {
    "l": 0.56186,
    "c": 0.10589,
    "h": 240.8
  },
  "luminance": 0.18061
}

Semantic roles & 50–950 ramp

primary

#307CAD

secondary

#C39475

accent

#8348E0

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #307CAD

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

Preview Lab → · Contrast checker → · Palette generator →