#306EB3#306EB3

#306EB3 is a mid, vivid cyan. Relative luminance 0.150; OKLCH L 53.2% C 0.126 H 253.3°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#306EB3
RGB	rgb(48, 110, 179)
HSL	hsl(212, 58%, 45%)
HSV	hsv(212, 73%, 70%)
CMYK	cmyk(73.2%, 38.5%, 0%, 29.8%)
CIE-LAB	lab(45.68, 3.91, -42.36)
CIE-LCH	lch(45.68, 42.54, 275.27°)
OKLab	oklab(53.23% -0.0362 -0.1207)
OKLCH	oklch(53.23% 0.126 253.3)
XYZ	xyz(14.9285, 15.0333, 44.7540)
Luminance	0.1504 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#306EB3 #B37530

analogous

#30B0B3 #306EB3 #3430B3

triadic

#306EB3 #B3306E #6EB330

tetradic

#306EB3 #B330B0 #B37530 #30B334

square

#306EB3 #B330B0 #B37530 #30B334

split-complementary

#306EB3 #B33430 #B0B330

monochromatic

#163352 #235083 #306EB3 #508DD0 #80ACDD

Accessibility & contrast

On white

5.24

#306EB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.01

#306EB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #306EB3

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##306EB3	#FFFFFF	#000000	##FFFFFF
##306EB3	1.00	5.24	4.01	5.24
#FFFFFF	5.24	1.00	21.00	1.00
#000000	4.01	21.00	1.00	21.00
##FFFFFF	5.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E73B6

Deuteranopia (green-blind)

#3A67B2

Tritanopia (blue-blind)

#007E88

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #306eb3;
/* rgb */ color: rgb(48, 110, 179);
/* oklch */ color: oklch(53.2% 0.126 253.3);

Tailwind

colors: {
  custom: {
    50: '#7997ca',
    500: '#306eb3',
    950: '#000000',
  },
}

SCSS

$custom: #306eb3;
$custom-light: #7997ca;
$custom-dark: #000000;

JSON

{
  "hex": "#306eb3",
  "rgb": {
    "r": 48,
    "g": 110,
    "b": 179
  },
  "hsl": {
    "h": 211.603,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.53227,
    "c": 0.12602,
    "h": 253.3
  },
  "luminance": 0.15035
}

Semantic roles & 50–950 ramp

primary

#306EB3

secondary

#C6A179

accent

#9847E1

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #306EB3

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

Preview Lab → · Contrast checker → · Palette generator →