#2B57BA#2B57BA

#2B57BA is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.5% C 0.164 H 263.5°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#2B57BA
RGB	rgb(43, 87, 186)
HSL	hsl(222, 62%, 45%)
HSV	hsv(222, 77%, 73%)
CMYK	cmyk(76.9%, 53.2%, 0%, 27.1%)
CIE-LAB	lab(39.37, 20.70, -56.59)
CIE-LCH	lch(39.37, 60.26, 290.09°)
OKLab	oklab(48.46% -0.0187 -0.163)
OKLCH	oklch(48.46% 0.164 263.5)
XYZ	xyz(13.2642, 10.8736, 47.8446)
Luminance	0.1087 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B57BA #BA8E2B

analogous

#2B9FBA #2B57BA #462BBA

triadic

#2B57BA #BA2B57 #57BA2B

tetradic

#2B57BA #BA2B9F #BA8E2B #2BBA46

square

#2B57BA #BA2B9F #BA8E2B #2BBA46

split-complementary

#2B57BA #BA462B #9FBA2B

monochromatic

#142857 #204088 #2B57BA #4C77D6 #7E9DE1

Accessibility & contrast

On white

6.61

#2B57BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#2B57BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B57BA

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B57BA	#FFFFFF	#000000	##FFFFFF
##2B57BA	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B64BD

Deuteranopia (green-blind)

#0056B8

Tritanopia (blue-blind)

#006F80

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2b57ba;
/* rgb */ color: rgb(43, 87, 186);
/* oklch */ color: oklch(48.5% 0.164 263.5);

Tailwind

colors: {
  custom: {
    50: '#7a85cf',
    500: '#2b57ba',
    950: '#000000',
  },
}

SCSS

$custom: #2b57ba;
$custom-light: #7a85cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2b57ba",
  "rgb": {
    "r": 43,
    "g": 87,
    "b": 186
  },
  "hsl": {
    "h": 221.538,
    "s": 62.445,
    "l": 44.902
  },
  "oklch": {
    "l": 0.48457,
    "c": 0.1641,
    "h": 263.5
  },
  "luminance": 0.10875
}

Semantic roles & 50–950 ramp

primary

#2B57BA

secondary

#CAB077

accent

#B342E6

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #2B57BA

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

Preview Lab → · Contrast checker → · Palette generator →