#2D57A9#2D57A9

#2D57A9 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.3% C 0.140 H 262.1°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#2D57A9
RGB	rgb(45, 87, 169)
HSL	hsl(220, 58%, 42%)
HSV	hsv(220, 73%, 66%)
CMYK	cmyk(73.4%, 48.5%, 0%, 33.7%)
CIE-LAB	lab(38.27, 14.46, -48.34)
CIE-LCH	lch(38.27, 50.46, 286.66°)
OKLab	oklab(47.26% -0.0193 -0.1387)
OKLCH	oklch(47.26% 0.14 262.1)
XYZ	xyz(11.6493, 10.2376, 38.8905)
Luminance	0.1024 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D57A9 #A97F2D

analogous

#2D95A9 #2D57A9 #412DA9

triadic

#2D57A9 #A92D57 #57A92D

tetradic

#2D57A9 #A92D95 #A97F2D #2DA941

square

#2D57A9 #A92D95 #A97F2D #2DA941

split-complementary

#2D57A9 #A9412D #95A92D

monochromatic

#132548 #203E79 #2D57A9 #4674CE #7698DA

Accessibility & contrast

On white

6.89

#2D57A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#2D57A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2D57A9

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D57A9	#FFFFFF	#000000	##FFFFFF
##2D57A9	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A60AC

Deuteranopia (green-blind)

#0455A7

Tritanopia (blue-blind)

#006A78

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2d57a9;
/* rgb */ color: rgb(45, 87, 169);
/* oklch */ color: oklch(47.3% 0.140 262.1);

Tailwind

colors: {
  custom: {
    50: '#7685c3',
    500: '#2d57a9',
    950: '#000000',
  },
}

SCSS

$custom: #2d57a9;
$custom-light: #7685c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2d57a9",
  "rgb": {
    "r": 45,
    "g": 87,
    "b": 169
  },
  "hsl": {
    "h": 219.677,
    "s": 57.944,
    "l": 41.961
  },
  "oklch": {
    "l": 0.47263,
    "c": 0.14006,
    "h": 262.1
  },
  "luminance": 0.10239
}

Semantic roles & 50–950 ramp

primary

#2D57A9

secondary

#C2A66F

accent

#AD47E1

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #2D57A9

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

Preview Lab → · Contrast checker → · Palette generator →