#307CA8#307CA8

#307CA8 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 55.9% C 0.100 H 237.9°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#307CA8
RGB	rgb(48, 124, 168)
HSL	hsl(202, 56%, 42%)
HSV	hsv(202, 71%, 66%)
CMYK	cmyk(71.4%, 26.2%, 0%, 34.1%)
CIE-LAB	lab(49.34, -8.50, -30.20)
CIE-LCH	lch(49.34, 31.37, 254.27°)
OKLab	oklab(55.93% -0.0533 -0.0851)
OKLCH	oklch(55.93% 0.1 237.9)
XYZ	xyz(15.4917, 17.8691, 39.6708)
Luminance	0.1787 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307CA8 #A85C30

analogous

#30A898 #307CA8 #3040A8

triadic

#307CA8 #A8307C #7CA830

tetradic

#307CA8 #9830A8 #A85C30 #40A830

square

#307CA8 #9830A8 #A85C30 #40A830

split-complementary

#307CA8 #A83040 #A89830

monochromatic

#153649 #225978 #307CA8 #4A9CCB #7AB6D9

Accessibility & contrast

On white

4.59

#307CA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#307CA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #307CA8

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307CA8	#FFFFFF	#000000	##FFFFFF
##307CA8	1.00	4.59	4.57	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#677CAA

Deuteranopia (green-blind)

#5770A7

Tritanopia (blue-blind)

#00878B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #307ca8;
/* rgb */ color: rgb(48, 124, 168);
/* oklch */ color: oklch(55.9% 0.100 237.9);

Tailwind

colors: {
  custom: {
    50: '#78a1c2',
    500: '#307ca8',
    950: '#000000',
  },
}

SCSS

$custom: #307ca8;
$custom-light: #78a1c2;
$custom-dark: #000000;

JSON

{
  "hex": "#307ca8",
  "rgb": {
    "r": 48,
    "g": 124,
    "b": 168
  },
  "hsl": {
    "h": 202,
    "s": 55.556,
    "l": 42.353
  },
  "oklch": {
    "l": 0.55927,
    "c": 0.1004,
    "h": 237.9
  },
  "luminance": 0.17871
}

Semantic roles & 50–950 ramp

primary

#307CA8

secondary

#C18F73

accent

#8049DF

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #307CA8

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

Preview Lab → · Contrast checker → · Palette generator →