#234FAB#234FAB

#234FAB is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.3% C 0.156 H 262.6°. Best body text is #FFFFFF at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#234FAB
RGB	rgb(35, 79, 171)
HSL	hsl(221, 66%, 40%)
HSV	hsv(221, 80%, 67%)
CMYK	cmyk(79.5%, 53.8%, 0%, 32.9%)
CIE-LAB	lab(35.77, 19.31, -53.58)
CIE-LCH	lch(35.77, 56.96, 289.82°)
OKLab	oklab(45.3% -0.0199 -0.1545)
OKLCH	oklch(45.3% 0.156 262.6)
XYZ	xyz(10.8372, 8.8883, 39.6646)
Luminance	0.0889 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#234FAB #AB7F23

analogous

#2393AB #234FAB #3B23AB

triadic

#234FAB #AB234F #4FAB23

tetradic

#234FAB #AB2393 #AB7F23 #23AB3B

square

#234FAB #AB2393 #AB7F23 #23AB3B

split-complementary

#234FAB #AB3B23 #93AB23

monochromatic

#0E2045 #193878 #234FAB #3569D6 #688FE0

Accessibility & contrast

On white

7.56

#234FAB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#234FAB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #234FAB

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##234FAB	#FFFFFF	#000000	##FFFFFF
##234FAB	1.00	7.56	2.78	7.56
#FFFFFF	7.56	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#055BAE

Deuteranopia (green-blind)

#004EA9

Tritanopia (blue-blind)

#006675

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #234fab;
/* rgb */ color: rgb(35, 79, 171);
/* oklch */ color: oklch(45.3% 0.156 262.6);

Tailwind

colors: {
  custom: {
    50: '#747fc5',
    500: '#234fab',
    950: '#000000',
  },
}

SCSS

$custom: #234fab;
$custom-light: #747fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#234fab",
  "rgb": {
    "r": 35,
    "g": 79,
    "b": 171
  },
  "hsl": {
    "h": 220.588,
    "s": 66.019,
    "l": 40.392
  },
  "oklch": {
    "l": 0.453,
    "c": 0.15574,
    "h": 262.6
  },
  "luminance": 0.0889
}

Semantic roles & 50–950 ramp

primary

#234FAB

secondary

#C6A664

accent

#B23FE9

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #234FAB

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

Preview Lab → · Contrast checker → · Palette generator →