#307AAD#307AAD

#307AAD is a mid, moderate cyan. Relative luminance 0.176; OKLCH L 55.7% C 0.107 H 242.5°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#307AAD
RGB	rgb(48, 122, 173)
HSL	hsl(204, 57%, 43%)
HSV	hsv(204, 72%, 68%)
CMYK	cmyk(72.3%, 29.5%, 0%, 32.2%)
CIE-LAB	lab(48.96, -5.56, -33.69)
CIE-LCH	lch(48.96, 34.14, 260.63°)
OKLab	oklab(55.71% -0.0496 -0.0952)
OKLCH	oklch(55.71% 0.107 242.5)
XYZ	xyz(15.7184, 17.5628, 42.0886)
Luminance	0.1757 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307AAD #AD6330

analogous

#30ADA1 #307AAD #303BAD

triadic

#307AAD #AD307A #7AAD30

tetradic

#307AAD #A130AD #AD6330 #3BAD30

square

#307AAD #A130AD #AD6330 #3BAD30

split-complementary

#307AAD #AD303B #ADA130

monochromatic

#15364D #23587D #307AAD #4D99CE #7DB4DB

Accessibility & contrast

On white

4.65

#307AAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#307AAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #307AAD

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307AAD	#FFFFFF	#000000	##FFFFFF
##307AAD	1.00	4.65	4.51	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#637BAF

Deuteranopia (green-blind)

#516FAC

Tritanopia (blue-blind)

#00878C

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #307aad;
/* rgb */ color: rgb(48, 122, 173);
/* oklch */ color: oklch(55.7% 0.107 242.5);

Tailwind

colors: {
  custom: {
    50: '#78a0c5',
    500: '#307aad',
    950: '#000000',
  },
}

SCSS

$custom: #307aad;
$custom-light: #78a0c5;
$custom-dark: #000000;

JSON

{
  "hex": "#307aad",
  "rgb": {
    "r": 48,
    "g": 122,
    "b": 173
  },
  "hsl": {
    "h": 204.48,
    "s": 56.561,
    "l": 43.333
  },
  "oklch": {
    "l": 0.55706,
    "c": 0.10739,
    "h": 242.5
  },
  "luminance": 0.17565
}

Semantic roles & 50–950 ramp

primary

#307AAD

secondary

#C39575

accent

#8648E0

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #307AAD

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

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