#234DB9#234DB9

#234DB9 is a mid, vivid blue. Relative luminance 0.092; OKLCH L 46.0% C 0.177 H 264.3°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#234DB9
RGB	rgb(35, 77, 185)
HSL	hsl(223, 68%, 43%)
HSV	hsv(223, 81%, 73%)
CMYK	cmyk(81.1%, 58.4%, 0%, 27.5%)
CIE-LAB	lab(36.30, 26.09, -61.00)
CIE-LCH	lch(36.30, 66.34, 293.16°)
OKLab	oklab(46.04% -0.0176 -0.1763)
OKLCH	oklch(46.04% 0.177 264.3)
XYZ	xyz(12.1009, 9.1664, 47.0211)
Luminance	0.0917 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#234DB9 #B98F23

analogous

#2398B9 #234DB9 #4423B9

triadic

#234DB9 #B9234D #4DB923

tetradic

#234DB9 #B92398 #B98F23 #23B944

square

#234DB9 #B92398 #B98F23 #23B944

split-complementary

#234DB9 #B94423 #98B923

monochromatic

#102252 #193886 #234DB9 #3F6ADB #7292E4

Accessibility & contrast

On white

7.41

#234DB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#234DB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #234DB9

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##234DB9	#FFFFFF	#000000	##FFFFFF
##234DB9	1.00	7.41	2.83	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DBD

Deuteranopia (green-blind)

#004FB7

Tritanopia (blue-blind)

#00687B

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #234db9;
/* rgb */ color: rgb(35, 77, 185);
/* oklch */ color: oklch(46.0% 0.177 264.3);

Tailwind

colors: {
  custom: {
    50: '#787ecf',
    500: '#234db9',
    950: '#000000',
  },
}

SCSS

$custom: #234db9;
$custom-light: #787ecf;
$custom-dark: #000000;

JSON

{
  "hex": "#234db9",
  "rgb": {
    "r": 35,
    "g": 77,
    "b": 185
  },
  "hsl": {
    "h": 223.2,
    "s": 68.182,
    "l": 43.137
  },
  "oklch": {
    "l": 0.46042,
    "c": 0.17715,
    "h": 264.3
  },
  "luminance": 0.09168
}

Semantic roles & 50–950 ramp

primary

#234DB9

secondary

#CBB16D

accent

#BA3DEB

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0A0914

muted

#7C7B82

Preview Lab

Preview with #234DB9

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

Preview Lab → · Contrast checker → · Palette generator →