#2A57A9#2A57A9

#2A57A9 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.1% C 0.141 H 261.2°. Best body text is #FFFFFF at 6.92:1 contrast (WCAG AA passes).

Color values

HEX	#2A57A9
RGB	rgb(42, 87, 169)
HSL	hsl(219, 60%, 41%)
HSV	hsv(219, 75%, 66%)
CMYK	cmyk(75.1%, 48.5%, 0%, 33.7%)
CIE-LAB	lab(38.15, 14.05, -48.53)
CIE-LCH	lch(38.15, 50.53, 286.15°)
OKLab	oklab(47.14% -0.0215 -0.1393)
OKLCH	oklch(47.14% 0.141 261.2)
XYZ	xyz(11.5219, 10.1719, 38.8846)
Luminance	0.1017 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A57A9 #A97C2A

analogous

#2A97A9 #2A57A9 #3D2AA9

triadic

#2A57A9 #A92A57 #57A92A

tetradic

#2A57A9 #A92A97 #A97C2A #2AA93D

square

#2A57A9 #A92A97 #A97C2A #2AA93D

split-complementary

#2A57A9 #A93D2A #97A92A

monochromatic

#122547 #1E3E78 #2A57A9 #4173D0 #7297DC

Accessibility & contrast

On white

6.92

#2A57A9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#2A57A9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A57A9

6.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A57A9	#FFFFFF	#000000	##FFFFFF
##2A57A9	1.00	6.92	3.03	6.92
#FFFFFF	6.92	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2960AC

Deuteranopia (green-blind)

#0054A7

Tritanopia (blue-blind)

#006A78

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2a57a9;
/* rgb */ color: rgb(42, 87, 169);
/* oklch */ color: oklch(47.1% 0.141 261.2);

Tailwind

colors: {
  custom: {
    50: '#7585c3',
    500: '#2a57a9',
    950: '#000000',
  },
}

SCSS

$custom: #2a57a9;
$custom-light: #7585c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2a57a9",
  "rgb": {
    "r": 42,
    "g": 87,
    "b": 169
  },
  "hsl": {
    "h": 218.74,
    "s": 60.19,
    "l": 41.373
  },
  "oklch": {
    "l": 0.47142,
    "c": 0.14101,
    "h": 261.2
  },
  "luminance": 0.10173
}

Semantic roles & 50–950 ramp

primary

#2A57A9

secondary

#C3A46C

accent

#AB44E3

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #2A57A9

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

Preview Lab → · Contrast checker → · Palette generator →