#2340A8#2340A8

#2340A8 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.0% C 0.170 H 266.7°. Best body text is #FFFFFF at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#2340A8
RGB	rgb(35, 64, 168)
HSL	hsl(227, 66%, 40%)
HSV	hsv(227, 79%, 66%)
CMYK	cmyk(79.2%, 61.9%, 0%, 34.1%)
CIE-LAB	lab(31.46, 28.20, -58.80)
CIE-LCH	lch(31.46, 65.21, 295.63°)
OKLab	oklab(41.99% -0.0099 -0.17)
OKLCH	oklch(41.99% 0.17 266.7)
XYZ	xyz(9.5919, 6.8502, 37.8549)
Luminance	0.0685 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2340A8 #A88B23

analogous

#2383A8 #2340A8 #4823A8

triadic

#2340A8 #A82340 #40A823

tetradic

#2340A8 #A82383 #A88B23 #23A848

square

#2340A8 #A82383 #A88B23 #23A848

split-complementary

#2340A8 #A84823 #83A823

monochromatic

#0E1943 #182D75 #2340A8 #3457D5 #6681DF

Accessibility & contrast

On white

8.86

#2340A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#2340A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2340A8

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2340A8	#FFFFFF	#000000	##FFFFFF
##2340A8	1.00	8.86	2.37	8.86
#FFFFFF	8.86	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AB

Deuteranopia (green-blind)

#0044A6

Tritanopia (blue-blind)

#005B6E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2340a8;
/* rgb */ color: rgb(35, 64, 168);
/* oklch */ color: oklch(42.0% 0.170 266.7);

Tailwind

colors: {
  custom: {
    50: '#7474c3',
    500: '#2340a8',
    950: '#000000',
  },
}

SCSS

$custom: #2340a8;
$custom-light: #7474c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2340a8",
  "rgb": {
    "r": 35,
    "g": 64,
    "b": 168
  },
  "hsl": {
    "h": 226.917,
    "s": 65.517,
    "l": 39.804
  },
  "oklch": {
    "l": 0.41991,
    "c": 0.17032,
    "h": 266.7
  },
  "luminance": 0.06851
}

Semantic roles & 50–950 ramp

primary

#2340A8

secondary

#C5AF62

accent

#C43FE8

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2340A8

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

Preview Lab → · Contrast checker → · Palette generator →