#2357A8#2357A8

#2357A8 is a mid, vivid blue. Relative luminance 0.100; OKLCH L 46.8% C 0.142 H 259.2°. Best body text is #FFFFFF at 7.00:1 contrast (WCAG AA passes).

Color values

HEX	#2357A8
RGB	rgb(35, 87, 168)
HSL	hsl(217, 66%, 40%)
HSV	hsv(217, 79%, 66%)
CMYK	cmyk(79.2%, 48.2%, 0%, 34.1%)
CIE-LAB	lab(37.84, 12.81, -48.45)
CIE-LCH	lch(37.84, 50.11, 284.81°)
OKLab	oklab(46.82% -0.0265 -0.1392)
OKLCH	oklch(46.82% 0.142 259.2)
XYZ	xyz(11.1666, 9.9996, 38.3798)
Luminance	0.1000 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2357A8 #A87423

analogous

#239AA8 #2357A8 #3123A8

triadic

#2357A8 #A82357 #57A823

tetradic

#2357A8 #A8239A #A87423 #23A831

square

#2357A8 #A8239A #A87423 #23A831

split-complementary

#2357A8 #A83123 #9AA823

monochromatic

#0E2343 #183D75 #2357A8 #3473D5 #6696DF

Accessibility & contrast

On white

7.00

#2357A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

3.00

#2357A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2357A8

7.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2357A8	#FFFFFF	#000000	##FFFFFF
##2357A8	1.00	7.00	3.00	7.00
#FFFFFF	7.00	1.00	21.00	1.00
#000000	3.00	21.00	1.00	21.00
##FFFFFF	7.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2960AB

Deuteranopia (green-blind)

#0053A6

Tritanopia (blue-blind)

#006A77

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #2357a8;
/* rgb */ color: rgb(35, 87, 168);
/* oklch */ color: oklch(46.8% 0.142 259.2);

Tailwind

colors: {
  custom: {
    50: '#7385c2',
    500: '#2357a8',
    950: '#000000',
  },
}

SCSS

$custom: #2357a8;
$custom-light: #7385c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2357a8",
  "rgb": {
    "r": 35,
    "g": 87,
    "b": 168
  },
  "hsl": {
    "h": 216.541,
    "s": 65.517,
    "l": 39.804
  },
  "oklch": {
    "l": 0.46817,
    "c": 0.14171,
    "h": 259.2
  },
  "luminance": 0.10001
}

Semantic roles & 50–950 ramp

primary

#2357A8

secondary

#C59E62

accent

#A63FE8

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090B12

muted

#7B7C81

Preview Lab

Preview with #2357A8

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

Preview Lab → · Contrast checker → · Palette generator →