#307CAA#307CAA

#307CAA is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 56.0% C 0.103 H 239.1°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#307CAA
RGB	rgb(48, 124, 170)
HSL	hsl(203, 56%, 43%)
HSV	hsv(203, 72%, 67%)
CMYK	cmyk(71.8%, 27.1%, 0%, 33.3%)
CIE-LAB	lab(49.43, -7.80, -31.22)
CIE-LCH	lch(49.43, 32.17, 255.97°)
OKLab	oklab(56.03% -0.0526 -0.088)
OKLCH	oklch(56.03% 0.103 239.1)
XYZ	xyz(15.6794, 17.9442, 40.6596)
Luminance	0.1795 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307CAA #AA5E30

analogous

#30AA9B #307CAA #303FAA

triadic

#307CAA #AA307C #7CAA30

tetradic

#307CAA #9B30AA #AA5E30 #3FAA30

square

#307CAA #9B30AA #AA5E30 #3FAA30

split-complementary

#307CAA #AA303F #AA9B30

monochromatic

#15364B #23597A #307CAA #4B9BCC #7BB6DA

Accessibility & contrast

On white

4.58

#307CAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#307CAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307CAA

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307CAA	#FFFFFF	#000000	##000000
##307CAA	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#677CAC

Deuteranopia (green-blind)

#5670A9

Tritanopia (blue-blind)

#00888C

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #307caa;
/* rgb */ color: rgb(48, 124, 170);
/* oklch */ color: oklch(56.0% 0.103 239.1);

Tailwind

colors: {
  custom: {
    50: '#78a1c3',
    500: '#307caa',
    950: '#000000',
  },
}

SCSS

$custom: #307caa;
$custom-light: #78a1c3;
$custom-dark: #000000;

JSON

{
  "hex": "#307caa",
  "rgb": {
    "r": 48,
    "g": 124,
    "b": 170
  },
  "hsl": {
    "h": 202.623,
    "s": 55.963,
    "l": 42.745
  },
  "oklch": {
    "l": 0.5603,
    "c": 0.10256,
    "h": 239.1
  },
  "luminance": 0.17946
}

Semantic roles & 50–950 ramp

primary

#307CAA

secondary

#C29174

accent

#8149DF

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #307CAA

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

Preview Lab → · Contrast checker → · Palette generator →