#307BAD#307BAD

#307BAD is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 55.9% C 0.107 H 241.7°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#307BAD
RGB	rgb(48, 123, 173)
HSL	hsl(204, 57%, 43%)
HSV	hsv(204, 72%, 68%)
CMYK	cmyk(72.3%, 28.9%, 0%, 32.2%)
CIE-LAB	lab(49.26, -6.15, -33.21)
CIE-LCH	lch(49.26, 33.78, 259.51°)
OKLab	oklab(55.95% -0.0506 -0.0938)
OKLCH	oklch(55.95% 0.107 241.7)
XYZ	xyz(15.8418, 17.8097, 42.1298)
Luminance	0.1781 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307BAD #AD6230

analogous

#30ADA0 #307BAD #303CAD

triadic

#307BAD #AD307B #7BAD30

tetradic

#307BAD #A030AD #AD6230 #3CAD30

square

#307BAD #A030AD #AD6230 #3CAD30

split-complementary

#307BAD #AD303C #ADA030

monochromatic

#15374D #23597D #307BAD #4D9ACE #7DB5DB

Accessibility & contrast

On white

4.60

#307BAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#307BAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #307BAD

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307BAD	#FFFFFF	#000000	##FFFFFF
##307BAD	1.00	4.60	4.56	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#647CAF

Deuteranopia (green-blind)

#5370AC

Tritanopia (blue-blind)

#00878C

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #307bad;
/* rgb */ color: rgb(48, 123, 173);
/* oklch */ color: oklch(55.9% 0.107 241.7);

Tailwind

colors: {
  custom: {
    50: '#78a1c5',
    500: '#307bad',
    950: '#000000',
  },
}

SCSS

$custom: #307bad;
$custom-light: #78a1c5;
$custom-dark: #000000;

JSON

{
  "hex": "#307bad",
  "rgb": {
    "r": 48,
    "g": 123,
    "b": 173
  },
  "hsl": {
    "h": 204,
    "s": 56.561,
    "l": 43.333
  },
  "oklch": {
    "l": 0.55946,
    "c": 0.10663,
    "h": 241.7
  },
  "luminance": 0.17811
}

Semantic roles & 50–950 ramp

primary

#307BAD

secondary

#C39575

accent

#8548E0

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #307BAD

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

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