#2B57A3#2B57A3

#2B57A3 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 46.8% C 0.132 H 260.5°. Best body text is #FFFFFF at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#2B57A3
RGB	rgb(43, 87, 163)
HSL	hsl(218, 58%, 40%)
HSV	hsv(218, 74%, 64%)
CMYK	cmyk(73.6%, 46.6%, 0%, 36.1%)
CIE-LAB	lab(37.79, 11.89, -45.53)
CIE-LCH	lch(37.79, 47.06, 284.63°)
OKLab	oklab(46.75% -0.0218 -0.1305)
OKLCH	oklch(46.75% 0.132 260.5)
XYZ	xyz(11.0129, 9.9731, 35.9878)
Luminance	0.0997 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B57A3 #A3772B

analogous

#2B93A3 #2B57A3 #3B2BA3

triadic

#2B57A3 #A32B57 #57A32B

tetradic

#2B57A3 #A32B93 #A3772B #2BA33B

square

#2B57A3 #A32B93 #A3772B #2BA33B

split-complementary

#2B57A3 #A33B2B #93A32B

monochromatic

#112342 #1E3D73 #2B57A3 #3F73CC #6F96D9

Accessibility & contrast

On white

7.01

#2B57A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#2B57A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B57A3

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B57A3	#FFFFFF	#000000	##FFFFFF
##2B57A3	1.00	7.01	2.99	7.01
#FFFFFF	7.01	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F5FA6

Deuteranopia (green-blind)

#1554A1

Tritanopia (blue-blind)

#006975

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2b57a3;
/* rgb */ color: rgb(43, 87, 163);
/* oklch */ color: oklch(46.8% 0.132 260.5);

Tailwind

colors: {
  custom: {
    50: '#7485bf',
    500: '#2b57a3',
    950: '#000000',
  },
}

SCSS

$custom: #2b57a3;
$custom-light: #7485bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2b57a3",
  "rgb": {
    "r": 43,
    "g": 87,
    "b": 163
  },
  "hsl": {
    "h": 218,
    "s": 58.252,
    "l": 40.392
  },
  "oklch": {
    "l": 0.46753,
    "c": 0.13231,
    "h": 260.5
  },
  "luminance": 0.09974
}

Semantic roles & 50–950 ramp

primary

#2B57A3

secondary

#C0A06A

accent

#A946E1

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2B57A3

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

Preview Lab → · Contrast checker → · Palette generator →