#307BA6#307BA6

#307BA6 is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.6% C 0.099 H 237.6°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#307BA6
RGB	rgb(48, 123, 166)
HSL	hsl(202, 55%, 42%)
HSV	hsv(202, 71%, 65%)
CMYK	cmyk(71.1%, 25.9%, 0%, 34.9%)
CIE-LAB	lab(48.94, -8.63, -29.65)
CIE-LCH	lch(48.94, 30.88, 253.78°)
OKLab	oklab(55.58% -0.053 -0.0835)
OKLCH	oklch(55.58% 0.099 237.6)
XYZ	xyz(15.1821, 17.5458, 38.6555)
Luminance	0.1755 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307BA6 #A65B30

analogous

#30A696 #307BA6 #3040A6

triadic

#307BA6 #A6307B #7BA630

tetradic

#307BA6 #9630A6 #A65B30 #40A630

square

#307BA6 #9630A6 #A65B30 #40A630

split-complementary

#307BA6 #A63040 #A69630

monochromatic

#153547 #225877 #307BA6 #499BCA #78B5D8

Accessibility & contrast

On white

4.66

#307BA6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#307BA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #307BA6

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307BA6	#FFFFFF	#000000	##FFFFFF
##307BA6	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#677BA8

Deuteranopia (green-blind)

#576FA5

Tritanopia (blue-blind)

#00868A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #307ba6;
/* rgb */ color: rgb(48, 123, 166);
/* oklch */ color: oklch(55.6% 0.099 237.6);

Tailwind

colors: {
  custom: {
    50: '#77a1c0',
    500: '#307ba6',
    950: '#000000',
  },
}

SCSS

$custom: #307ba6;
$custom-light: #77a1c0;
$custom-dark: #000000;

JSON

{
  "hex": "#307ba6",
  "rgb": {
    "r": 48,
    "g": 123,
    "b": 166
  },
  "hsl": {
    "h": 201.864,
    "s": 55.14,
    "l": 41.961
  },
  "oklch": {
    "l": 0.55582,
    "c": 0.0989,
    "h": 237.6
  },
  "luminance": 0.17547
}

Semantic roles & 50–950 ramp

primary

#307BA6

secondary

#C08E71

accent

#8049DE

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #307BA6

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

Preview Lab → · Contrast checker → · Palette generator →