#306FB1#306FB1

#306FB1 is a mid, vivid cyan. Relative luminance 0.152; OKLCH L 53.3% C 0.122 H 252.1°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#306FB1
RGB	rgb(48, 111, 177)
HSL	hsl(211, 57%, 44%)
HSV	hsv(211, 73%, 69%)
CMYK	cmyk(72.9%, 37.3%, 0%, 30.6%)
CIE-LAB	lab(45.87, 2.55, -40.90)
CIE-LCH	lch(45.87, 40.98, 273.57°)
OKLab	oklab(53.34% -0.0377 -0.1164)
OKLCH	oklch(53.34% 0.122 252.1)
XYZ	xyz(14.8362, 15.1699, 43.7326)
Luminance	0.1517 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306FB1 #B17230

analogous

#30B0B1 #306FB1 #3230B1

triadic

#306FB1 #B1306F #6FB130

tetradic

#306FB1 #B130B0 #B17230 #30B132

square

#306FB1 #B130B0 #B17230 #30B132

split-complementary

#306FB1 #B13230 #B0B130

monochromatic

#163351 #235181 #306FB1 #4F8ECF #7FADDC

Accessibility & contrast

On white

5.21

#306FB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#306FB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306FB1

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306FB1	#FFFFFF	#000000	##FFFFFF
##306FB1	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5173B4

Deuteranopia (green-blind)

#3E67B0

Tritanopia (blue-blind)

#007F87

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #306fb1;
/* rgb */ color: rgb(48, 111, 177);
/* oklch */ color: oklch(53.3% 0.122 252.1);

Tailwind

colors: {
  custom: {
    50: '#7997c8',
    500: '#306fb1',
    950: '#000000',
  },
}

SCSS

$custom: #306fb1;
$custom-light: #7997c8;
$custom-dark: #000000;

JSON

{
  "hex": "#306fb1",
  "rgb": {
    "r": 48,
    "g": 111,
    "b": 177
  },
  "hsl": {
    "h": 210.698,
    "s": 57.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.53337,
    "c": 0.12235,
    "h": 252.1
  },
  "luminance": 0.15172
}

Semantic roles & 50–950 ramp

primary

#306FB1

secondary

#C59F78

accent

#9647E1

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306FB1

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

Preview Lab → · Contrast checker → · Palette generator →