#2D57BB#2D57BB

#2D57BB is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.6% C 0.165 H 264.0°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#2D57BB
RGB	rgb(45, 87, 187)
HSL	hsl(222, 61%, 45%)
HSV	hsv(222, 76%, 73%)
CMYK	cmyk(75.9%, 53.5%, 0%, 26.7%)
CIE-LAB	lab(39.51, 21.31, -56.93)
CIE-LCH	lch(39.51, 60.79, 290.52°)
OKLab	oklab(48.61% -0.0171 -0.164)
OKLCH	oklch(48.61% 0.165 264)
XYZ	xyz(13.4568, 10.9606, 48.4105)
Luminance	0.1096 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D57BB #BB912D

analogous

#2D9EBB #2D57BB #4A2DBB

triadic

#2D57BB #BB2D57 #57BB2D

tetradic

#2D57BB #BB2D9E #BB912D #2DBB4A

square

#2D57BB #BB2D9E #BB912D #2DBB4A

split-complementary

#2D57BB #BB4A2D #9EBB2D

monochromatic

#152958 #21408A #2D57BB #5077D5 #829EE1

Accessibility & contrast

On white

6.58

#2D57BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#2D57BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2D57BB

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D57BB	#FFFFFF	#000000	##FFFFFF
##2D57BB	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0864BF

Deuteranopia (green-blind)

#0057B9

Tritanopia (blue-blind)

#006F80

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2d57bb;
/* rgb */ color: rgb(45, 87, 187);
/* oklch */ color: oklch(48.6% 0.165 264.0);

Tailwind

colors: {
  custom: {
    50: '#7a85d0',
    500: '#2d57bb',
    950: '#000000',
  },
}

SCSS

$custom: #2d57bb;
$custom-light: #7a85d0;
$custom-dark: #000000;

JSON

{
  "hex": "#2d57bb",
  "rgb": {
    "r": 45,
    "g": 87,
    "b": 187
  },
  "hsl": {
    "h": 222.254,
    "s": 61.207,
    "l": 45.49
  },
  "oklch": {
    "l": 0.48612,
    "c": 0.1649,
    "h": 264
  },
  "luminance": 0.10962
}

Semantic roles & 50–950 ramp

primary

#2D57BB

secondary

#CAB27A

accent

#B543E4

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #2D57BB

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

Preview Lab → · Contrast checker → · Palette generator →