#307CA4#307CA4

#307CA4 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.7% C 0.096 H 235.4°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#307CA4
RGB	rgb(48, 124, 164)
HSL	hsl(201, 55%, 42%)
HSV	hsv(201, 71%, 64%)
CMYK	cmyk(70.7%, 24.4%, 0%, 35.7%)
CIE-LAB	lab(49.16, -9.90, -28.15)
CIE-LCH	lch(49.16, 29.84, 250.62°)
OKLab	oklab(55.73% -0.0547 -0.0792)
OKLCH	oklch(55.73% 0.096 235.4)
XYZ	xyz(15.1248, 17.7223, 37.7384)
Luminance	0.1772 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307CA4 #A45830

analogous

#30A492 #307CA4 #3042A4

triadic

#307CA4 #A4307C #7CA430

tetradic

#307CA4 #9230A4 #A45830 #42A430

square

#307CA4 #9230A4 #A45830 #42A430

split-complementary

#307CA4 #A43042 #A49230

monochromatic

#143445 #225875 #307CA4 #489DC9 #77B6D7

Accessibility & contrast

On white

4.62

#307CA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#307CA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #307CA4

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307CA4	#FFFFFF	#000000	##FFFFFF
##307CA4	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#697BA6

Deuteranopia (green-blind)

#5970A3

Tritanopia (blue-blind)

#00868A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #307ca4;
/* rgb */ color: rgb(48, 124, 164);
/* oklch */ color: oklch(55.7% 0.096 235.4);

Tailwind

colors: {
  custom: {
    50: '#77a1bf',
    500: '#307ca4',
    950: '#000000',
  },
}

SCSS

$custom: #307ca4;
$custom-light: #77a1bf;
$custom-dark: #000000;

JSON

{
  "hex": "#307ca4",
  "rgb": {
    "r": 48,
    "g": 124,
    "b": 164
  },
  "hsl": {
    "h": 200.69,
    "s": 54.717,
    "l": 41.569
  },
  "oklch": {
    "l": 0.55725,
    "c": 0.09623,
    "h": 235.4
  },
  "luminance": 0.17724
}

Semantic roles & 50–950 ramp

primary

#307CA4

secondary

#BF8C70

accent

#7D4ADE

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #307CA4

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

Preview Lab → · Contrast checker → · Palette generator →