#233579#233579

#233579 is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.6% C 0.118 H 268.6°. Best body text is #FFFFFF at 11.31:1 contrast (WCAG AA passes).

Color values

HEX	#233579
RGB	rgb(35, 53, 121)
HSL	hsl(227, 55%, 31%)
HSV	hsv(227, 71%, 47%)
CMYK	cmyk(71.1%, 56.2%, 0%, 52.5%)
CIE-LAB	lab(24.59, 17.46, -41.05)
CIE-LCH	lch(24.59, 44.61, 293.05°)
OKLab	oklab(35.64% -0.0029 -0.118)
OKLCH	oklch(35.64% 0.118 268.6)
XYZ	xyz(5.4162, 4.2835, 18.6268)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233579 #796723

analogous

#236079 #233579 #3C2379

triadic

#233579 #792335 #357923

tetradic

#233579 #792360 #796723 #23793C

square

#233579 #792360 #796723 #23793C

split-complementary

#233579 #793C23 #607923

monochromatic

#080B1A #15204A #233579 #314AA8 #4B66CB

Accessibility & contrast

On white

11.31

#233579 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#233579 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233579

11.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233579	#FFFFFF	#000000	##FFFFFF
##233579	1.00	11.31	1.86	11.31
#FFFFFF	11.31	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#033E7B

Deuteranopia (green-blind)

#003778

Tritanopia (blue-blind)

#004551

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #233579;
/* rgb */ color: rgb(35, 53, 121);
/* oklch */ color: oklch(35.6% 0.118 268.6);

Tailwind

colors: {
  custom: {
    50: '#696ba0',
    500: '#233579',
    950: '#000000',
  },
}

SCSS

$custom: #233579;
$custom-light: #696ba0;
$custom-dark: #000000;

JSON

{
  "hex": "#233579",
  "rgb": {
    "r": 35,
    "g": 53,
    "b": 121
  },
  "hsl": {
    "h": 227.442,
    "s": 55.128,
    "l": 30.588
  },
  "oklch": {
    "l": 0.35641,
    "c": 0.11808,
    "h": 268.6
  },
  "luminance": 0.04284
}

Semantic roles & 50–950 ramp

primary

#233579

secondary

#AC984C

accent

#BF49DE

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07060F

muted

#7A7A7E

Preview Lab

Preview with #233579

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

Preview Lab → · Contrast checker → · Palette generator →