#306CB0#306CB0

#306CB0 is a mid, vivid cyan. Relative luminance 0.145; OKLCH L 52.6% C 0.124 H 253.6°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#306CB0
RGB	rgb(48, 108, 176)
HSL	hsl(212, 57%, 44%)
HSV	hsv(212, 73%, 69%)
CMYK	cmyk(72.7%, 38.6%, 0%, 31%)
CIE-LAB	lab(44.92, 4.04, -41.81)
CIE-LCH	lch(44.92, 42.01, 275.53°)
OKLab	oklab(52.58% -0.035 -0.1191)
OKLCH	oklch(52.58% 0.124 253.6)
XYZ	xyz(14.4151, 14.4865, 43.1023)
Luminance	0.1449 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306CB0 #B07430

analogous

#30ACB0 #306CB0 #3430B0

triadic

#306CB0 #B0306C #6CB030

tetradic

#306CB0 #B030AC #B07430 #30B034

square

#306CB0 #B030AC #B07430 #30B034

split-complementary

#306CB0 #B03430 #ACB030

monochromatic

#163150 #234E80 #306CB0 #4E8BCF #7EAADC

Accessibility & contrast

On white

5.39

#306CB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#306CB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306CB0

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306CB0	#FFFFFF	#000000	##FFFFFF
##306CB0	1.00	5.39	3.90	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D71B3

Deuteranopia (green-blind)

#3965AF

Tritanopia (blue-blind)

#007C85

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #306cb0;
/* rgb */ color: rgb(48, 108, 176);
/* oklch */ color: oklch(52.6% 0.124 253.6);

Tailwind

colors: {
  custom: {
    50: '#7995c8',
    500: '#306cb0',
    950: '#000000',
  },
}

SCSS

$custom: #306cb0;
$custom-light: #7995c8;
$custom-dark: #000000;

JSON

{
  "hex": "#306cb0",
  "rgb": {
    "r": 48,
    "g": 108,
    "b": 176
  },
  "hsl": {
    "h": 211.875,
    "s": 57.143,
    "l": 43.922
  },
  "oklch": {
    "l": 0.52582,
    "c": 0.12419,
    "h": 253.6
  },
  "luminance": 0.14488
}

Semantic roles & 50–950 ramp

primary

#306CB0

secondary

#C5A077

accent

#9947E0

background

#F7F9FC

surface

#EEF1F8

border

#C9CBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306CB0

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

Preview Lab → · Contrast checker → · Palette generator →