#2B57BD#2B57BD

#2B57BD is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.7% C 0.168 H 263.7°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#2B57BD
RGB	rgb(43, 87, 189)
HSL	hsl(222, 63%, 45%)
HSV	hsv(222, 77%, 74%)
CMYK	cmyk(77.2%, 54%, 0%, 25.9%)
CIE-LAB	lab(39.58, 21.84, -57.99)
CIE-LCH	lch(39.58, 61.97, 290.64°)
OKLab	oklab(48.69% -0.0184 -0.1672)
OKLCH	oklch(48.69% 0.168 263.7)
XYZ	xyz(13.5865, 11.0026, 49.5419)
Luminance	0.1100 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B57BD #BD912B

analogous

#2BA0BD #2B57BD #482BBD

triadic

#2B57BD #BD2B57 #57BD2B

tetradic

#2B57BD #BD2BA0 #BD912B #2BBD48

square

#2B57BD #BD2BA0 #BD912B #2BBD48

split-complementary

#2B57BD #BD482B #A0BD2B

monochromatic

#142959 #20408B #2B57BD #4E77D7 #809EE2

Accessibility & contrast

On white

6.56

#2B57BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#2B57BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B57BD

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B57BD	#FFFFFF	#000000	##FFFFFF
##2B57BD	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C1

Deuteranopia (green-blind)

#0057BB

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2b57bd;
/* rgb */ color: rgb(43, 87, 189);
/* oklch */ color: oklch(48.7% 0.168 263.7);

Tailwind

colors: {
  custom: {
    50: '#7a85d2',
    500: '#2b57bd',
    950: '#000000',
  },
}

SCSS

$custom: #2b57bd;
$custom-light: #7a85d2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b57bd",
  "rgb": {
    "r": 43,
    "g": 87,
    "b": 189
  },
  "hsl": {
    "h": 221.918,
    "s": 62.931,
    "l": 45.49
  },
  "oklch": {
    "l": 0.48691,
    "c": 0.16817,
    "h": 263.7
  },
  "luminance": 0.11004
}

Semantic roles & 50–950 ramp

primary

#2B57BD

secondary

#CBB279

accent

#B542E6

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #2B57BD

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

Preview Lab → · Contrast checker → · Palette generator →