#307BA9#307BA9

#307BA9 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.7% C 0.102 H 239.4°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#307BA9
RGB	rgb(48, 123, 169)
HSL	hsl(203, 56%, 43%)
HSV	hsv(203, 72%, 66%)
CMYK	cmyk(71.6%, 27.2%, 0%, 33.7%)
CIE-LAB	lab(49.08, -7.57, -31.18)
CIE-LCH	lch(49.08, 32.09, 256.36°)
OKLab	oklab(55.74% -0.0519 -0.0879)
OKLCH	oklch(55.74% 0.102 239.4)
XYZ	xyz(15.4605, 17.6571, 40.1218)
Luminance	0.1766 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307BA9 #A95E30

analogous

#30A99A #307BA9 #303FA9

triadic

#307BA9 #A9307B #7BA930

tetradic

#307BA9 #9A30A9 #A95E30 #3FA930

square

#307BA9 #9A30A9 #A95E30 #3FA930

split-complementary

#307BA9 #A9303F #A99A30

monochromatic

#15364A #225879 #307BA9 #4A9BCC #7AB5D9

Accessibility & contrast

On white

4.63

#307BA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#307BA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #307BA9

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307BA9	#FFFFFF	#000000	##FFFFFF
##307BA9	1.00	4.63	4.53	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.53	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#667BAB

Deuteranopia (green-blind)

#556FA8

Tritanopia (blue-blind)

#00878B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #307ba9;
/* rgb */ color: rgb(48, 123, 169);
/* oklch */ color: oklch(55.7% 0.102 239.4);

Tailwind

colors: {
  custom: {
    50: '#78a1c2',
    500: '#307ba9',
    950: '#000000',
  },
}

SCSS

$custom: #307ba9;
$custom-light: #78a1c2;
$custom-dark: #000000;

JSON

{
  "hex": "#307ba9",
  "rgb": {
    "r": 48,
    "g": 123,
    "b": 169
  },
  "hsl": {
    "h": 202.81,
    "s": 55.76,
    "l": 42.549
  },
  "oklch": {
    "l": 0.55736,
    "c": 0.10215,
    "h": 239.4
  },
  "luminance": 0.17659
}

Semantic roles & 50–950 ramp

primary

#307BA9

secondary

#C29173

accent

#8249DF

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #307BA9

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

Preview Lab → · Contrast checker → · Palette generator →