#2251A8#2251A8

#2251A8 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.5% C 0.149 H 261.4°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#2251A8
RGB	rgb(34, 81, 168)
HSL	hsl(219, 66%, 40%)
HSV	hsv(219, 80%, 66%)
CMYK	cmyk(79.8%, 51.8%, 0%, 34.1%)
CIE-LAB	lab(36.08, 16.69, -51.29)
CIE-LCH	lch(36.08, 53.94, 288.03°)
OKLab	oklab(45.46% -0.0224 -0.1477)
OKLCH	oklch(45.46% 0.149 261.4)
XYZ	xyz(10.6674, 9.0508, 38.2230)
Luminance	0.0905 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2251A8 #A87922

analogous

#2294A8 #2251A8 #3622A8

triadic

#2251A8 #A82251 #51A822

tetradic

#2251A8 #A82294 #A87922 #22A836

square

#2251A8 #A82294 #A87922 #22A836

split-complementary

#2251A8 #A83622 #94A822

monochromatic

#0D2042 #183875 #2251A8 #326BD5 #6590E0

Accessibility & contrast

On white

7.47

#2251A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#2251A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2251A8

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2251A8	#FFFFFF	#000000	##FFFFFF
##2251A8	1.00	7.47	2.81	7.47
#FFFFFF	7.47	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#175BAB

Deuteranopia (green-blind)

#004FA6

Tritanopia (blue-blind)

#006674

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #2251a8;
/* rgb */ color: rgb(34, 81, 168);
/* oklch */ color: oklch(45.5% 0.149 261.4);

Tailwind

colors: {
  custom: {
    50: '#7381c2',
    500: '#2251a8',
    950: '#000000',
  },
}

SCSS

$custom: #2251a8;
$custom-light: #7381c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2251a8",
  "rgb": {
    "r": 34,
    "g": 81,
    "b": 168
  },
  "hsl": {
    "h": 218.955,
    "s": 66.337,
    "l": 39.608
  },
  "oklch": {
    "l": 0.4546,
    "c": 0.14939,
    "h": 261.4
  },
  "luminance": 0.09052
}

Semantic roles & 50–950 ramp

primary

#2251A8

secondary

#C5A261

accent

#AD3FE9

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #2251A8

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

Preview Lab → · Contrast checker → · Palette generator →