#307CA3#307CA3

#307CA3 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.7% C 0.095 H 234.7°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#307CA3
RGB	rgb(48, 124, 163)
HSL	hsl(200, 55%, 41%)
HSV	hsv(200, 71%, 64%)
CMYK	cmyk(70.6%, 23.9%, 0%, 36.1%)
CIE-LAB	lab(49.11, -10.25, -27.63)
CIE-LCH	lch(49.11, 29.47, 249.65°)
OKLab	oklab(55.68% -0.0551 -0.0777)
OKLCH	oklch(55.68% 0.095 234.7)
XYZ	xyz(15.0348, 17.6864, 37.2647)
Luminance	0.1769 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307CA3 #A35730

analogous

#30A391 #307CA3 #3043A3

triadic

#307CA3 #A3307C #7CA330

tetradic

#307CA3 #9130A3 #A35730 #43A330

square

#307CA3 #9130A3 #A35730 #43A330

split-complementary

#307CA3 #A33043 #A39130

monochromatic

#143444 #225874 #307CA3 #479DC9 #77B6D7

Accessibility & contrast

On white

4.63

#307CA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#307CA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #307CA3

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307CA3	#FFFFFF	#000000	##FFFFFF
##307CA3	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#697BA5

Deuteranopia (green-blind)

#5970A2

Tritanopia (blue-blind)

#008689

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #307ca3;
/* rgb */ color: rgb(48, 124, 163);
/* oklch */ color: oklch(55.7% 0.095 234.7);

Tailwind

colors: {
  custom: {
    50: '#77a1be',
    500: '#307ca3',
    950: '#000000',
  },
}

SCSS

$custom: #307ca3;
$custom-light: #77a1be;
$custom-dark: #000000;

JSON

{
  "hex": "#307ca3",
  "rgb": {
    "r": 48,
    "g": 124,
    "b": 163
  },
  "hsl": {
    "h": 200.348,
    "s": 54.502,
    "l": 41.373
  },
  "oklch": {
    "l": 0.55676,
    "c": 0.09522,
    "h": 234.7
  },
  "luminance": 0.17688
}

Semantic roles & 50–950 ramp

primary

#307CA3

secondary

#BF8B70

accent

#7C4ADE

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #307CA3

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

Preview Lab → · Contrast checker → · Palette generator →