#2A57AC#2A57AC

#2A57AC is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.4% C 0.145 H 261.6°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#2A57AC
RGB	rgb(42, 87, 172)
HSL	hsl(219, 61%, 42%)
HSV	hsv(219, 76%, 67%)
CMYK	cmyk(75.6%, 49.4%, 0%, 32.5%)
CIE-LAB	lab(38.35, 15.21, -49.99)
CIE-LCH	lch(38.35, 52.25, 286.92°)
OKLab	oklab(47.36% -0.0211 -0.1436)
OKLCH	oklch(47.36% 0.145 261.6)
XYZ	xyz(11.8068, 10.2859, 40.3848)
Luminance	0.1029 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A57AC #AC7F2A

analogous

#2A98AC #2A57AC #3E2AAC

triadic

#2A57AC #AC2A57 #57AC2A

tetradic

#2A57AC #AC2A98 #AC7F2A #2AAC3E

square

#2A57AC #AC2A98 #AC7F2A #2AAC3E

split-complementary

#2A57AC #AC3E2A #98AC2A

monochromatic

#12254A #1E3E7B #2A57AC #4274D1 #7398DD

Accessibility & contrast

On white

6.87

#2A57AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#2A57AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A57AC

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A57AC	#FFFFFF	#000000	##FFFFFF
##2A57AC	1.00	6.87	3.06	6.87
#FFFFFF	6.87	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2661AF

Deuteranopia (green-blind)

#0055AA

Tritanopia (blue-blind)

#006B79

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2a57ac;
/* rgb */ color: rgb(42, 87, 172);
/* oklch */ color: oklch(47.4% 0.145 261.6);

Tailwind

colors: {
  custom: {
    50: '#7685c5',
    500: '#2a57ac',
    950: '#000000',
  },
}

SCSS

$custom: #2a57ac;
$custom-light: #7685c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2a57ac",
  "rgb": {
    "r": 42,
    "g": 87,
    "b": 172
  },
  "hsl": {
    "h": 219.231,
    "s": 60.748,
    "l": 41.961
  },
  "oklch": {
    "l": 0.47361,
    "c": 0.14517,
    "h": 261.6
  },
  "luminance": 0.10287
}

Semantic roles & 50–950 ramp

primary

#2A57AC

secondary

#C4A66D

accent

#AD44E4

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2A57AC

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

Preview Lab → · Contrast checker → · Palette generator →