#307DB2#307DB2

#307DB2 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.7% C 0.111 H 242.6°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#307DB2
RGB	rgb(48, 125, 178)
HSL	hsl(204, 58%, 44%)
HSV	hsv(204, 73%, 70%)
CMYK	cmyk(73%, 29.8%, 0%, 30.2%)
CIE-LAB	lab(50.11, -5.54, -34.79)
CIE-LCH	lch(50.11, 35.23, 260.95°)
OKLab	oklab(56.69% -0.051 -0.0984)
OKLCH	oklch(56.69% 0.111 242.6)
XYZ	xyz(16.5853, 18.5081, 44.8092)
Luminance	0.1851 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307DB2 #B26530

analogous

#30B2A6 #307DB2 #303CB2

triadic

#307DB2 #B2307D #7DB230

tetradic

#307DB2 #A630B2 #B26530 #3CB230

square

#307DB2 #A630B2 #B26530 #3CB230

split-complementary

#307DB2 #B2303C #B2A630

monochromatic

#163952 #235B82 #307DB2 #509BD0 #80B7DD

Accessibility & contrast

On white

4.47

#307DB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#307DB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307DB2

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307DB2	#FFFFFF	#000000	##000000
##307DB2	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#657EB4

Deuteranopia (green-blind)

#5372B1

Tritanopia (blue-blind)

#008A90

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #307db2;
/* rgb */ color: rgb(48, 125, 178);
/* oklch */ color: oklch(56.7% 0.111 242.6);

Tailwind

colors: {
  custom: {
    50: '#79a2c9',
    500: '#307db2',
    950: '#000000',
  },
}

SCSS

$custom: #307db2;
$custom-light: #79a2c9;
$custom-dark: #000000;

JSON

{
  "hex": "#307db2",
  "rgb": {
    "r": 48,
    "g": 125,
    "b": 178
  },
  "hsl": {
    "h": 204.462,
    "s": 57.522,
    "l": 44.314
  },
  "oklch": {
    "l": 0.5669,
    "c": 0.11083,
    "h": 242.6
  },
  "luminance": 0.1851
}

Semantic roles & 50–950 ramp

primary

#307DB2

secondary

#C69878

accent

#8647E1

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #307DB2

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

Preview Lab → · Contrast checker → · Palette generator →