#2D57AB#2D57AB

#2D57AB is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.4% C 0.143 H 262.4°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#2D57AB
RGB	rgb(45, 87, 171)
HSL	hsl(220, 58%, 42%)
HSV	hsv(220, 74%, 67%)
CMYK	cmyk(73.7%, 49.1%, 0%, 32.9%)
CIE-LAB	lab(38.40, 15.22, -49.31)
CIE-LCH	lch(38.40, 51.61, 287.16°)
OKLab	oklab(47.41% -0.019 -0.1416)
OKLCH	oklch(47.41% 0.143 262.4)
XYZ	xyz(11.8384, 10.3133, 39.8869)
Luminance	0.1032 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D57AB #AB812D

analogous

#2D96AB #2D57AB #422DAB

triadic

#2D57AB #AB2D57 #57AB2D

tetradic

#2D57AB #AB2D96 #AB812D #2DAB42

square

#2D57AB #AB2D96 #AB812D #2DAB42

split-complementary

#2D57AB #AB422D #96AB2D

monochromatic

#14264A #203E7B #2D57AB #4774CE #7799DB

Accessibility & contrast

On white

6.86

#2D57AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#2D57AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2D57AB

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D57AB	#FFFFFF	#000000	##FFFFFF
##2D57AB	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2861AE

Deuteranopia (green-blind)

#0055A9

Tritanopia (blue-blind)

#006B79

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2d57ab;
/* rgb */ color: rgb(45, 87, 171);
/* oklch */ color: oklch(47.4% 0.143 262.4);

Tailwind

colors: {
  custom: {
    50: '#7785c5',
    500: '#2d57ab',
    950: '#000000',
  },
}

SCSS

$custom: #2d57ab;
$custom-light: #7785c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2d57ab",
  "rgb": {
    "r": 45,
    "g": 87,
    "b": 171
  },
  "hsl": {
    "h": 220,
    "s": 58.333,
    "l": 42.353
  },
  "oklch": {
    "l": 0.47408,
    "c": 0.14286,
    "h": 262.4
  },
  "luminance": 0.10315
}

Semantic roles & 50–950 ramp

primary

#2D57AB

secondary

#C3A871

accent

#AE46E2

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2D57AB

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

Preview Lab → · Contrast checker → · Palette generator →