#234A9B#234A9B

#234A9B is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.0% C 0.140 H 262.7°. Best body text is #FFFFFF at 8.32:1 contrast (WCAG AA passes).

Color values

HEX	#234A9B
RGB	rgb(35, 74, 155)
HSL	hsl(221, 63%, 37%)
HSV	hsv(221, 77%, 61%)
CMYK	cmyk(77.4%, 52.3%, 0%, 39.2%)
CIE-LAB	lab(33.18, 16.39, -48.18)
CIE-LCH	lch(33.18, 50.89, 288.79°)
OKLab	oklab(42.96% -0.0178 -0.1386)
OKLCH	oklch(42.96% 0.14 262.7)
XYZ	xyz(9.0562, 7.6204, 31.9976)
Luminance	0.0762 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#234A9B #9B7423

analogous

#23869B #234A9B #38239B

triadic

#234A9B #9B234A #4A9B23

tetradic

#234A9B #9B2386 #9B7423 #239B38

square

#234A9B #9B2386 #9B7423 #239B38

split-complementary

#234A9B #9B3823 #869B23

monochromatic

#0C1A37 #183269 #234A9B #2E62CD #5E86DB

Accessibility & contrast

On white

8.32

#234A9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.52

#234A9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #234A9B

8.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##234A9B	#FFFFFF	#000000	##FFFFFF
##234A9B	1.00	8.32	2.52	8.32
#FFFFFF	8.32	1.00	21.00	1.00
#000000	2.52	21.00	1.00	21.00
##FFFFFF	8.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15549E

Deuteranopia (green-blind)

#004999

Tritanopia (blue-blind)

#005E6B

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #234a9b;
/* rgb */ color: rgb(35, 74, 155);
/* oklch */ color: oklch(43.0% 0.140 262.7);

Tailwind

colors: {
  custom: {
    50: '#707bb9',
    500: '#234a9b',
    950: '#000000',
  },
}

SCSS

$custom: #234a9b;
$custom-light: #707bb9;
$custom-dark: #000000;

JSON

{
  "hex": "#234a9b",
  "rgb": {
    "r": 35,
    "g": 74,
    "b": 155
  },
  "hsl": {
    "h": 220.5,
    "s": 63.158,
    "l": 37.255
  },
  "oklch": {
    "l": 0.4296,
    "c": 0.13979,
    "h": 262.7
  },
  "luminance": 0.07621
}

Semantic roles & 50–950 ramp

primary

#234A9B

secondary

#BF9F5A

accent

#B142E6

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #234A9B

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

Preview Lab → · Contrast checker → · Palette generator →