#2A51AC#2A51AC

#2A51AC is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.1% C 0.153 H 263.9°. Best body text is #FFFFFF at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#2A51AC
RGB	rgb(42, 81, 172)
HSL	hsl(222, 61%, 42%)
HSV	hsv(222, 76%, 67%)
CMYK	cmyk(75.6%, 52.9%, 0%, 32.5%)
CIE-LAB	lab(36.66, 19.18, -52.72)
CIE-LCH	lch(36.66, 56.10, 289.99°)
OKLab	oklab(46.07% -0.0162 -0.1518)
OKLCH	oklch(46.07% 0.153 263.9)
XYZ	xyz(11.3410, 9.3544, 40.2296)
Luminance	0.0936 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A51AC #AC852A

analogous

#2A92AC #2A51AC #442AAC

triadic

#2A51AC #AC2A51 #51AC2A

tetradic

#2A51AC #AC2A92 #AC852A #2AAC44

square

#2A51AC #AC2A92 #AC852A #2AAC44

split-complementary

#2A51AC #AC442A #92AC2A

monochromatic

#12234A #1E3A7B #2A51AC #426DD1 #7393DD

Accessibility & contrast

On white

7.31

#2A51AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#2A51AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A51AC

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A51AC	#FFFFFF	#000000	##FFFFFF
##2A51AC	1.00	7.31	2.87	7.31
#FFFFFF	7.31	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#115DAF

Deuteranopia (green-blind)

#0051AA

Tritanopia (blue-blind)

#006776

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #2a51ac;
/* rgb */ color: rgb(42, 81, 172);
/* oklch */ color: oklch(46.1% 0.153 263.9);

Tailwind

colors: {
  custom: {
    50: '#7681c5',
    500: '#2a51ac',
    950: '#000000',
  },
}

SCSS

$custom: #2a51ac;
$custom-light: #7681c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2a51ac",
  "rgb": {
    "r": 42,
    "g": 81,
    "b": 172
  },
  "hsl": {
    "h": 222,
    "s": 60.748,
    "l": 41.961
  },
  "oklch": {
    "l": 0.4607,
    "c": 0.15264,
    "h": 263.9
  },
  "luminance": 0.09356
}

Semantic roles & 50–950 ramp

primary

#2A51AC

secondary

#C4AA6D

accent

#B444E4

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2A51AC

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

Preview Lab → · Contrast checker → · Palette generator →