#2357A3#2357A3

#2357A3 is a mid, vivid blue. Relative luminance 0.098; OKLCH L 46.5% C 0.135 H 258.3°. Best body text is #FFFFFF at 7.09:1 contrast (WCAG AA passes).

Color values

HEX	#2357A3
RGB	rgb(35, 87, 163)
HSL	hsl(216, 65%, 39%)
HSV	hsv(216, 79%, 64%)
CMYK	cmyk(78.5%, 46.6%, 0%, 36.1%)
CIE-LAB	lab(37.51, 10.85, -46.00)
CIE-LCH	lch(37.51, 47.26, 283.27°)
OKLab	oklab(46.46% -0.0274 -0.132)
OKLCH	oklch(46.46% 0.135 258.3)
XYZ	xyz(10.7098, 9.8168, 35.9736)
Luminance	0.0982 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2357A3 #A36F23

analogous

#2397A3 #2357A3 #2F23A3

triadic

#2357A3 #A32357 #57A323

tetradic

#2357A3 #A32397 #A36F23 #23A32F

square

#2357A3 #A32397 #A36F23 #23A32F

split-complementary

#2357A3 #A32F23 #97A323

monochromatic

#0D213E #183C71 #2357A3 #3172D3 #6395DD

Accessibility & contrast

On white

7.09

#2357A3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#2357A3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2357A3

7.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2357A3	#FFFFFF	#000000	##FFFFFF
##2357A3	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)

#2E5FA6

Deuteranopia (green-blind)

#0F53A1

Tritanopia (blue-blind)

#006975

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2357a3;
/* rgb */ color: rgb(35, 87, 163);
/* oklch */ color: oklch(46.5% 0.135 258.3);

Tailwind

colors: {
  custom: {
    50: '#7285bf',
    500: '#2357a3',
    950: '#000000',
  },
}

SCSS

$custom: #2357a3;
$custom-light: #7285bf;
$custom-dark: #000000;

JSON

{
  "hex": "#2357a3",
  "rgb": {
    "r": 35,
    "g": 87,
    "b": 163
  },
  "hsl": {
    "h": 215.625,
    "s": 64.646,
    "l": 38.824
  },
  "oklch": {
    "l": 0.46456,
    "c": 0.1348,
    "h": 258.3
  },
  "luminance": 0.09818
}

Semantic roles & 50–950 ramp

primary

#2357A3

secondary

#C39A5F

accent

#A440E8

background

#F7F8FB

surface

#EDEFF7

border

#C8CAD0

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2357A3

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

Preview Lab → · Contrast checker → · Palette generator →