#2340B4#2340B4

#2340B4 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.1% C 0.186 H 266.9°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#2340B4
RGB	rgb(35, 64, 180)
HSL	hsl(228, 67%, 42%)
HSV	hsv(228, 81%, 71%)
CMYK	cmyk(80.6%, 64.4%, 0%, 29.4%)
CIE-LAB	lab(32.52, 32.75, -64.23)
CIE-LCH	lch(32.52, 72.09, 297.02°)
OKLab	oklab(43.1% -0.01 -0.1859)
OKLCH	oklch(43.1% 0.186 266.9)
XYZ	xyz(10.7619, 7.3181, 44.0165)
Luminance	0.0732 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2340B4 #B49723

analogous

#2389B4 #2340B4 #4F23B4

triadic

#2340B4 #B42340 #40B423

tetradic

#2340B4 #B42389 #B49723 #23B44F

square

#2340B4 #B42389 #B49723 #23B44F

split-complementary

#2340B4 #B44F23 #89B423

monochromatic

#0F1C4E #192E81 #2340B4 #3B5BD9 #6E86E3

Accessibility & contrast

On white

8.52

#2340B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#2340B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2340B4

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2340B4	#FFFFFF	#000000	##FFFFFF
##2340B4	1.00	8.52	2.46	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B8

Deuteranopia (green-blind)

#0046B2

Tritanopia (blue-blind)

#005F74

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2340b4;
/* rgb */ color: rgb(35, 64, 180);
/* oklch */ color: oklch(43.1% 0.186 266.9);

Tailwind

colors: {
  custom: {
    50: '#7774cb',
    500: '#2340b4',
    950: '#000000',
  },
}

SCSS

$custom: #2340b4;
$custom-light: #7774cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2340b4",
  "rgb": {
    "r": 35,
    "g": 64,
    "b": 180
  },
  "hsl": {
    "h": 228,
    "s": 67.442,
    "l": 42.157
  },
  "oklch": {
    "l": 0.43098,
    "c": 0.18619,
    "h": 266.9
  },
  "luminance": 0.07319
}

Semantic roles & 50–950 ramp

primary

#2340B4

secondary

#C9B669

accent

#C83DEA

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2340B4

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

Preview Lab → · Contrast checker → · Palette generator →