#307BA3#307BA3

#307BA3 is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.4% C 0.096 H 235.7°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#307BA3
RGB	rgb(48, 123, 163)
HSL	hsl(201, 55%, 41%)
HSV	hsv(201, 71%, 64%)
CMYK	cmyk(70.6%, 24.5%, 0%, 36.1%)
CIE-LAB	lab(48.81, -9.68, -28.11)
CIE-LCH	lch(48.81, 29.73, 251.01°)
OKLab	oklab(55.43% -0.054 -0.0791)
OKLCH	oklch(55.43% 0.096 235.7)
XYZ	xyz(14.9101, 17.4370, 37.2231)
Luminance	0.1744 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307BA3 #A35830

analogous

#30A392 #307BA3 #3042A3

triadic

#307BA3 #A3307B #7BA330

tetradic

#307BA3 #9230A3 #A35830 #42A330

square

#307BA3 #9230A3 #A35830 #42A330

split-complementary

#307BA3 #A33042 #A39230

monochromatic

#143444 #225774 #307BA3 #479CC9 #77B5D7

Accessibility & contrast

On white

4.68

#307BA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#307BA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #307BA3

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307BA3	#FFFFFF	#000000	##FFFFFF
##307BA3	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#687AA5

Deuteranopia (green-blind)

#586FA2

Tritanopia (blue-blind)

#008589

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #307ba3;
/* rgb */ color: rgb(48, 123, 163);
/* oklch */ color: oklch(55.4% 0.096 235.7);

Tailwind

colors: {
  custom: {
    50: '#77a1be',
    500: '#307ba3',
    950: '#000000',
  },
}

SCSS

$custom: #307ba3;
$custom-light: #77a1be;
$custom-dark: #000000;

JSON

{
  "hex": "#307ba3",
  "rgb": {
    "r": 48,
    "g": 123,
    "b": 163
  },
  "hsl": {
    "h": 200.87,
    "s": 54.502,
    "l": 41.373
  },
  "oklch": {
    "l": 0.55431,
    "c": 0.09576,
    "h": 235.7
  },
  "luminance": 0.17439
}

Semantic roles & 50–950 ramp

primary

#307BA3

secondary

#BF8B70

accent

#7D4ADE

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #307BA3

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

Preview Lab → · Contrast checker → · Palette generator →