#2F55AB#2F55AB

#2F55AB is a mid, vivid blue. Relative luminance 0.100; OKLCH L 47.1% C 0.145 H 263.8°. Best body text is #FFFFFF at 6.98:1 contrast (WCAG AA passes).

Color values

HEX	#2F55AB
RGB	rgb(47, 85, 171)
HSL	hsl(222, 57%, 43%)
HSV	hsv(222, 73%, 67%)
CMYK	cmyk(72.5%, 50.3%, 0%, 32.9%)
CIE-LAB	lab(37.91, 16.82, -50.09)
CIE-LCH	lch(37.91, 52.84, 288.56°)
OKLab	oklab(47.06% -0.0156 -0.1439)
OKLCH	oklch(47.06% 0.145 263.8)
XYZ	xyz(11.7689, 10.0404, 39.8379)
Luminance	0.1004 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F55AB #AB852F

analogous

#2F93AB #2F55AB #472FAB

triadic

#2F55AB #AB2F55 #55AB2F

tetradic

#2F55AB #AB2F93 #AB852F #2FAB47

square

#2F55AB #AB2F93 #AB852F #2FAB47

split-complementary

#2F55AB #AB472F #93AB2F

monochromatic

#15254B #223D7B #2F55AB #4A72CD #7A98DA

Accessibility & contrast

On white

6.98

#2F55AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.01

#2F55AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F55AB

6.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F55AB	#FFFFFF	#000000	##FFFFFF
##2F55AB	1.00	6.98	3.01	6.98
#FFFFFF	6.98	1.00	21.00	1.00
#000000	3.01	21.00	1.00	21.00
##FFFFFF	6.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#235FAE

Deuteranopia (green-blind)

#0054A9

Tritanopia (blue-blind)

#006978

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2f55ab;
/* rgb */ color: rgb(47, 85, 171);
/* oklch */ color: oklch(47.1% 0.145 263.8);

Tailwind

colors: {
  custom: {
    50: '#7884c5',
    500: '#2f55ab',
    950: '#000000',
  },
}

SCSS

$custom: #2f55ab;
$custom-light: #7884c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2f55ab",
  "rgb": {
    "r": 47,
    "g": 85,
    "b": 171
  },
  "hsl": {
    "h": 221.613,
    "s": 56.881,
    "l": 42.745
  },
  "oklch": {
    "l": 0.47061,
    "c": 0.14472,
    "h": 263.8
  },
  "luminance": 0.10042
}

Semantic roles & 50–950 ramp

primary

#2F55AB

secondary

#C3AA73

accent

#B148E0

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2F55AB

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

Preview Lab → · Contrast checker → · Palette generator →