#307AB2#307AB2

#307AB2 is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 56.0% C 0.113 H 244.9°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#307AB2
RGB	rgb(48, 122, 178)
HSL	hsl(206, 58%, 44%)
HSV	hsv(206, 73%, 70%)
CMYK	cmyk(73%, 31.5%, 0%, 30.2%)
CIE-LAB	lab(49.20, -3.76, -36.21)
CIE-LCH	lch(49.20, 36.40, 264.07°)
OKLab	oklab(55.98% -0.0481 -0.1025)
OKLCH	oklch(55.98% 0.113 244.9)
XYZ	xyz(16.2113, 17.7600, 44.6845)
Luminance	0.1776 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307AB2 #B26830

analogous

#30B2A9 #307AB2 #3039B2

triadic

#307AB2 #B2307A #7AB230

tetradic

#307AB2 #A930B2 #B26830 #39B230

square

#307AB2 #A930B2 #B26830 #39B230

split-complementary

#307AB2 #B23039 #B2A930

monochromatic

#163852 #235982 #307AB2 #5098D0 #80B5DD

Accessibility & contrast

On white

4.61

#307AB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#307AB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #307AB2

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307AB2	#FFFFFF	#000000	##FFFFFF
##307AB2	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)

#607CB4

Deuteranopia (green-blind)

#4E6FB1

Tritanopia (blue-blind)

#00888E

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #307ab2;
/* rgb */ color: rgb(48, 122, 178);
/* oklch */ color: oklch(56.0% 0.113 244.9);

Tailwind

colors: {
  custom: {
    50: '#79a0c9',
    500: '#307ab2',
    950: '#000000',
  },
}

SCSS

$custom: #307ab2;
$custom-light: #79a0c9;
$custom-dark: #000000;

JSON

{
  "hex": "#307ab2",
  "rgb": {
    "r": 48,
    "g": 122,
    "b": 178
  },
  "hsl": {
    "h": 205.846,
    "s": 57.522,
    "l": 44.314
  },
  "oklch": {
    "l": 0.55977,
    "c": 0.11325,
    "h": 244.9
  },
  "luminance": 0.17762
}

Semantic roles & 50–950 ramp

primary

#307AB2

secondary

#C69A78

accent

#8947E1

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #307AB2

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

Preview Lab → · Contrast checker → · Palette generator →