#307AAB#307AAB

#307AAB is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.6% C 0.105 H 241.4°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#307AAB
RGB	rgb(48, 122, 171)
HSL	hsl(204, 56%, 43%)
HSV	hsv(204, 72%, 67%)
CMYK	cmyk(71.9%, 28.7%, 0%, 32.9%)
CIE-LAB	lab(48.87, -6.27, -32.67)
CIE-LCH	lch(48.87, 33.27, 259.13°)
OKLab	oklab(55.6% -0.0503 -0.0923)
OKLCH	oklch(55.6% 0.105 241.4)
XYZ	xyz(15.5263, 17.4860, 41.0770)
Luminance	0.1749 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307AAB #AB6130

analogous

#30AB9E #307AAB #303DAB

triadic

#307AAB #AB307A #7AAB30

tetradic

#307AAB #9E30AB #AB6130 #3DAB30

square

#307AAB #9E30AB #AB6130 #3DAB30

split-complementary

#307AAB #AB303D #AB9E30

monochromatic

#15364B #23587B #307AAB #4C99CD #7BB4DA

Accessibility & contrast

On white

4.67

#307AAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#307AAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #307AAB

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307AAB	#FFFFFF	#000000	##FFFFFF
##307AAB	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#637BAD

Deuteranopia (green-blind)

#536FAA

Tritanopia (blue-blind)

#00868B

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #307aab;
/* rgb */ color: rgb(48, 122, 171);
/* oklch */ color: oklch(55.6% 0.105 241.4);

Tailwind

colors: {
  custom: {
    50: '#78a0c4',
    500: '#307aab',
    950: '#000000',
  },
}

SCSS

$custom: #307aab;
$custom-light: #78a0c4;
$custom-dark: #000000;

JSON

{
  "hex": "#307aab",
  "rgb": {
    "r": 48,
    "g": 122,
    "b": 171
  },
  "hsl": {
    "h": 203.902,
    "s": 56.164,
    "l": 42.941
  },
  "oklch": {
    "l": 0.556,
    "c": 0.10508,
    "h": 241.4
  },
  "luminance": 0.17488
}

Semantic roles & 50–950 ramp

primary

#307AAB

secondary

#C39374

accent

#8548DF

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #307AAB

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

Preview Lab → · Contrast checker → · Palette generator →