#307FB4#307FB4

#307FB4 is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.3% C 0.112 H 242.0°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#307FB4
RGB	rgb(48, 127, 180)
HSL	hsl(204, 58%, 45%)
HSV	hsv(204, 73%, 71%)
CMYK	cmyk(73.3%, 29.4%, 0%, 29.4%)
CIE-LAB	lab(50.80, -6.00, -34.85)
CIE-LCH	lch(50.80, 35.36, 260.23°)
OKLab	oklab(57.27% -0.0523 -0.0985)
OKLCH	oklch(57.27% 0.112 242)
XYZ	xyz(17.0433, 19.1005, 45.9597)
Luminance	0.1910 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#307FB4 #B46530

analogous

#30B4A7 #307FB4 #303DB4

triadic

#307FB4 #B4307F #7FB430

tetradic

#307FB4 #A730B4 #B46530 #3DB430

square

#307FB4 #A730B4 #B46530 #3DB430

split-complementary

#307FB4 #B4303D #B4A730

monochromatic

#163B53 #235D84 #307FB4 #519DD1 #81B8DD

Accessibility & contrast

On white

4.36

#307FB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#307FB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #307FB4

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##307FB4	#FFFFFF	#000000	##000000
##307FB4	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6780B6

Deuteranopia (green-blind)

#5473B3

Tritanopia (blue-blind)

#008C92

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #307fb4;
/* rgb */ color: rgb(48, 127, 180);
/* oklch */ color: oklch(57.3% 0.112 242.0);

Tailwind

colors: {
  custom: {
    50: '#7aa3ca',
    500: '#307fb4',
    950: '#000000',
  },
}

SCSS

$custom: #307fb4;
$custom-light: #7aa3ca;
$custom-dark: #000000;

JSON

{
  "hex": "#307fb4",
  "rgb": {
    "r": 48,
    "g": 127,
    "b": 180
  },
  "hsl": {
    "h": 204.091,
    "s": 57.895,
    "l": 44.706
  },
  "oklch": {
    "l": 0.57274,
    "c": 0.11158,
    "h": 242
  },
  "luminance": 0.19102
}

Semantic roles & 50–950 ramp

primary

#307FB4

secondary

#C69879

accent

#8547E1

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #307FB4

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

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