#3055B4#3055B4

#3055B4 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.8% C 0.157 H 265.0°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#3055B4
RGB	rgb(48, 85, 180)
HSL	hsl(223, 58%, 45%)
HSV	hsv(223, 73%, 71%)
CMYK	cmyk(73.3%, 52.8%, 0%, 29.4%)
CIE-LAB	lab(38.58, 20.36, -54.32)
CIE-LCH	lch(38.58, 58.01, 290.54°)
OKLab	oklab(47.78% -0.0138 -0.1563)
OKLCH	oklch(47.78% 0.157 265)
XYZ	xyz(12.7027, 10.4193, 44.5128)
Luminance	0.1042 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3055B4 #B48F30

analogous

#3097B4 #3055B4 #4D30B4

triadic

#3055B4 #B43055 #55B430

tetradic

#3055B4 #B43097 #B48F30 #30B44D

square

#3055B4 #B43097 #B48F30 #30B44D

split-complementary

#3055B4 #B44D30 #97B430

monochromatic

#162753 #233E84 #3055B4 #5175D1 #819BDD

Accessibility & contrast

On white

6.81

#3055B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#3055B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3055B4

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3055B4	#FFFFFF	#000000	##FFFFFF
##3055B4	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1361B7

Deuteranopia (green-blind)

#0055B2

Tritanopia (blue-blind)

#006C7C

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3055b4;
/* rgb */ color: rgb(48, 85, 180);
/* oklch */ color: oklch(47.8% 0.157 265.0);

Tailwind

colors: {
  custom: {
    50: '#7a84cb',
    500: '#3055b4',
    950: '#000000',
  },
}

SCSS

$custom: #3055b4;
$custom-light: #7a84cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3055b4",
  "rgb": {
    "r": 48,
    "g": 85,
    "b": 180
  },
  "hsl": {
    "h": 223.182,
    "s": 57.895,
    "l": 44.706
  },
  "oklch": {
    "l": 0.47782,
    "c": 0.15693,
    "h": 265
  },
  "luminance": 0.10421
}

Semantic roles & 50–950 ramp

primary

#3055B4

secondary

#C6B179

accent

#B647E1

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3055B4

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

Preview Lab → · Contrast checker → · Palette generator →