#307DAB#307DAB

#307DAB is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.3% C 0.103 H 238.8°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#307DAB
RGB	rgb(48, 125, 171)
HSL	hsl(202, 56%, 43%)
HSV	hsv(202, 72%, 67%)
CMYK	cmyk(71.9%, 26.9%, 0%, 32.9%)
CIE-LAB	lab(49.78, -8.03, -31.25)
CIE-LCH	lch(49.78, 32.26, 255.59°)
OKLab	oklab(56.32% -0.0533 -0.0881)
OKLCH	oklch(56.32% 0.103 238.8)
XYZ	xyz(15.9004, 18.2341, 41.2017)
Luminance	0.1824 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307DAB #AB5E30

analogous

#30AB9B #307DAB #3040AB

triadic

#307DAB #AB307D #7DAB30

tetradic

#307DAB #9B30AB #AB5E30 #40AB30

square

#307DAB #9B30AB #AB5E30 #40AB30

split-complementary

#307DAB #AB3040 #AB9B30

monochromatic

#15374B #235A7B #307DAB #4C9CCD #7BB7DA

Accessibility & contrast

On white

4.52

#307DAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#307DAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307DAB

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307DAB	#FFFFFF	#000000	##000000
##307DAB	1.00	4.52	4.65	4.65
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#677DAD

Deuteranopia (green-blind)

#5771AA

Tritanopia (blue-blind)

#00898D

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #307dab;
/* rgb */ color: rgb(48, 125, 171);
/* oklch */ color: oklch(56.3% 0.103 238.8);

Tailwind

colors: {
  custom: {
    50: '#78a2c4',
    500: '#307dab',
    950: '#000000',
  },
}

SCSS

$custom: #307dab;
$custom-light: #78a2c4;
$custom-dark: #000000;

JSON

{
  "hex": "#307dab",
  "rgb": {
    "r": 48,
    "g": 125,
    "b": 171
  },
  "hsl": {
    "h": 202.439,
    "s": 56.164,
    "l": 42.941
  },
  "oklch": {
    "l": 0.56323,
    "c": 0.10299,
    "h": 238.8
  },
  "luminance": 0.18236
}

Semantic roles & 50–950 ramp

primary

#307DAB

secondary

#C39274

accent

#8148DF

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #307DAB

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

Preview Lab → · Contrast checker → · Palette generator →