#3055B3#3055B3

#3055B3 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.7% C 0.156 H 264.9°. Best body text is #FFFFFF at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#3055B3
RGB	rgb(48, 85, 179)
HSL	hsl(223, 58%, 45%)
HSV	hsv(223, 73%, 70%)
CMYK	cmyk(73.2%, 52.5%, 0%, 29.8%)
CIE-LAB	lab(38.51, 19.98, -53.85)
CIE-LCH	lch(38.51, 57.44, 290.36°)
OKLab	oklab(47.71% -0.0139 -0.1549)
OKLCH	oklch(47.71% 0.156 264.9)
XYZ	xyz(12.6012, 10.3787, 43.9783)
Luminance	0.1038 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3055B3 #B38E30

analogous

#3097B3 #3055B3 #4C30B3

triadic

#3055B3 #B33055 #55B330

tetradic

#3055B3 #B33097 #B38E30 #30B34C

square

#3055B3 #B33097 #B38E30 #30B34C

split-complementary

#3055B3 #B34C30 #97B330

monochromatic

#162752 #233E83 #3055B3 #5074D0 #809BDD

Accessibility & contrast

On white

6.83

#3055B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#3055B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3055B3

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3055B3	#FFFFFF	#000000	##FFFFFF
##3055B3	1.00	6.83	3.08	6.83
#FFFFFF	6.83	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1661B6

Deuteranopia (green-blind)

#0055B1

Tritanopia (blue-blind)

#006C7C

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3055b3;
/* rgb */ color: rgb(48, 85, 179);
/* oklch */ color: oklch(47.7% 0.156 264.9);

Tailwind

colors: {
  custom: {
    50: '#7a84ca',
    500: '#3055b3',
    950: '#000000',
  },
}

SCSS

$custom: #3055b3;
$custom-light: #7a84ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3055b3",
  "rgb": {
    "r": 48,
    "g": 85,
    "b": 179
  },
  "hsl": {
    "h": 223.053,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.47706,
    "c": 0.15554,
    "h": 264.9
  },
  "luminance": 0.1038
}

Semantic roles & 50–950 ramp

primary

#3055B3

secondary

#C6B079

accent

#B547E1

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #3055B3

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

Preview Lab → · Contrast checker → · Palette generator →