#2257A3#2257A3

#2257A3 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 46.4% C 0.135 H 258.0°. Best body text is #FFFFFF at 7.09:1 contrast (WCAG AA passes).

Color values

HEX	#2257A3
RGB	rgb(34, 87, 163)
HSL	hsl(215, 65%, 39%)
HSV	hsv(215, 79%, 64%)
CMYK	cmyk(79.1%, 46.6%, 0%, 36.1%)
CIE-LAB	lab(37.48, 10.73, -46.05)
CIE-LCH	lch(37.48, 47.29, 283.11°)
OKLab	oklab(46.42% -0.028 -0.1322)
OKLCH	oklch(46.42% 0.135 258)
XYZ	xyz(10.6763, 9.7996, 35.9721)
Luminance	0.0980 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2257A3 #A36E22

analogous

#2297A3 #2257A3 #2E22A3

triadic

#2257A3 #A32257 #57A322

tetradic

#2257A3 #A32297 #A36E22 #22A32E

square

#2257A3 #A32297 #A36E22 #22A32E

split-complementary

#2257A3 #A32E22 #97A322

monochromatic

#0D213E #173C70 #2257A3 #2F72D4 #6195DE

Accessibility & contrast

On white

7.09

#2257A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#2257A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2257A3

7.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2257A3	#FFFFFF	#000000	##FFFFFF
##2257A3	1.00	7.09	2.96	7.09
#FFFFFF	7.09	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E5EA6

Deuteranopia (green-blind)

#0E53A1

Tritanopia (blue-blind)

#006975

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2257a3;
/* rgb */ color: rgb(34, 87, 163);
/* oklch */ color: oklch(46.4% 0.135 258.0);

Tailwind

colors: {
  custom: {
    50: '#7185bf',
    500: '#2257a3',
    950: '#000000',
  },
}

SCSS

$custom: #2257a3;
$custom-light: #7185bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2257a3",
  "rgb": {
    "r": 34,
    "g": 87,
    "b": 163
  },
  "hsl": {
    "h": 215.349,
    "s": 65.482,
    "l": 38.627
  },
  "oklch": {
    "l": 0.46423,
    "c": 0.1351,
    "h": 258
  },
  "luminance": 0.09801
}

Semantic roles & 50–950 ramp

primary

#2257A3

secondary

#C3995E

accent

#A33FE8

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2257A3

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

Preview Lab → · Contrast checker → · Palette generator →