#2257A8#2257A8

#2257A8 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 46.8% C 0.142 H 259.0°. Best body text is #FFFFFF at 7.01:1 contrast (WCAG AA passes).

Color values

HEX	#2257A8
RGB	rgb(34, 87, 168)
HSL	hsl(216, 66%, 40%)
HSV	hsv(216, 80%, 66%)
CMYK	cmyk(79.8%, 48.2%, 0%, 34.1%)
CIE-LAB	lab(37.81, 12.70, -48.50)
CIE-LCH	lch(37.81, 50.13, 284.67°)
OKLab	oklab(46.78% -0.0272 -0.1394)
OKLCH	oklch(46.78% 0.142 259)
XYZ	xyz(11.1332, 9.9823, 38.3782)
Luminance	0.0998 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2257A8 #A87322

analogous

#229AA8 #2257A8 #3022A8

triadic

#2257A8 #A82257 #57A822

tetradic

#2257A8 #A8229A #A87322 #22A830

square

#2257A8 #A8229A #A87322 #22A830

split-complementary

#2257A8 #A83022 #9AA822

monochromatic

#0D2242 #183D75 #2257A8 #3272D5 #6595E0

Accessibility & contrast

On white

7.01

#2257A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#2257A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2257A8

7.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2257A8	#FFFFFF	#000000	##FFFFFF
##2257A8	1.00	7.01	3.00	7.01
#FFFFFF	7.01	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#295FAB

Deuteranopia (green-blind)

#0053A6

Tritanopia (blue-blind)

#006A77

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2257a8;
/* rgb */ color: rgb(34, 87, 168);
/* oklch */ color: oklch(46.8% 0.142 259.0);

Tailwind

colors: {
  custom: {
    50: '#7385c2',
    500: '#2257a8',
    950: '#000000',
  },
}

SCSS

$custom: #2257a8;
$custom-light: #7385c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2257a8",
  "rgb": {
    "r": 34,
    "g": 87,
    "b": 168
  },
  "hsl": {
    "h": 216.269,
    "s": 66.337,
    "l": 39.608
  },
  "oklch": {
    "l": 0.46784,
    "c": 0.14198,
    "h": 259
  },
  "luminance": 0.09984
}

Semantic roles & 50–950 ramp

primary

#2257A8

secondary

#C59D61

accent

#A63FE9

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2257A8

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

Preview Lab → · Contrast checker → · Palette generator →