#2251B4#2251B4

#2251B4 is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.4% C 0.166 H 262.7°. Best body text is #FFFFFF at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#2251B4
RGB	rgb(34, 81, 180)
HSL	hsl(221, 68%, 42%)
HSV	hsv(221, 81%, 71%)
CMYK	cmyk(81.1%, 55%, 0%, 29.4%)
CIE-LAB	lab(36.96, 21.40, -56.97)
CIE-LCH	lch(36.96, 60.86, 290.59°)
OKLab	oklab(46.41% -0.0212 -0.1644)
OKLCH	oklch(46.41% 0.166 262.7)
XYZ	xyz(11.8374, 9.5188, 44.3846)
Luminance	0.0952 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2251B4 #B48522

analogous

#229AB4 #2251B4 #3C22B4

triadic

#2251B4 #B42251 #51B422

tetradic

#2251B4 #B4229A #B48522 #22B43C

square

#2251B4 #B4229A #B48522 #22B43C

split-complementary

#2251B4 #B43C22 #9AB422

monochromatic

#0F234D #183A81 #2251B4 #3A6DDA #6D93E3

Accessibility & contrast

On white

7.23

#2251B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#2251B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2251B4

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2251B4	#FFFFFF	#000000	##FFFFFF
##2251B4	1.00	7.23	2.90	7.23
#FFFFFF	7.23	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EB7

Deuteranopia (green-blind)

#0051B2

Tritanopia (blue-blind)

#006A7A

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #2251b4;
/* rgb */ color: rgb(34, 81, 180);
/* oklch */ color: oklch(46.4% 0.166 262.7);

Tailwind

colors: {
  custom: {
    50: '#7681cb',
    500: '#2251b4',
    950: '#000000',
  },
}

SCSS

$custom: #2251b4;
$custom-light: #7681cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2251b4",
  "rgb": {
    "r": 34,
    "g": 81,
    "b": 180
  },
  "hsl": {
    "h": 220.685,
    "s": 68.224,
    "l": 41.961
  },
  "oklch": {
    "l": 0.4641,
    "c": 0.16577,
    "h": 262.7
  },
  "luminance": 0.0952
}

Semantic roles & 50–950 ramp

primary

#2251B4

secondary

#CAAA68

accent

#B33DEB

background

#F7F7FC

surface

#EEEEF9

border

#C9C9D2

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2251B4

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

Preview Lab → · Contrast checker → · Palette generator →