#233B77#233B77

#233B77 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.8% C 0.107 H 265.1°. Best body text is #FFFFFF at 10.70:1 contrast (WCAG AA passes).

Color values

HEX	#233B77
RGB	rgb(35, 59, 119)
HSL	hsl(223, 55%, 30%)
HSV	hsv(223, 71%, 47%)
CMYK	cmyk(70.6%, 50.4%, 0%, 53.3%)
CIE-LAB	lab(26.21, 12.47, -37.17)
CIE-LCH	lch(26.21, 39.21, 288.55°)
OKLab	oklab(36.82% -0.009 -0.1065)
OKLCH	oklch(36.82% 0.107 265.1)
XYZ	xyz(5.5857, 4.8166, 18.0845)
Luminance	0.0482 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B77 #775F23

analogous

#236577 #233B77 #352377

triadic

#233B77 #77233B #3B7723

tetradic

#233B77 #772365 #775F23 #237735

square

#233B77 #772365 #775F23 #237735

split-complementary

#233B77 #773523 #657723

monochromatic

#070C18 #152448 #233B77 #3152A6 #4A6FCA

Accessibility & contrast

On white

10.70

#233B77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#233B77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B77

10.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B77	#FFFFFF	#000000	##FFFFFF
##233B77	1.00	10.70	1.96	10.70
#FFFFFF	10.70	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4279

Deuteranopia (green-blind)

#063A76

Tritanopia (blue-blind)

#004953

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #233b77;
/* rgb */ color: rgb(35, 59, 119);
/* oklch */ color: oklch(36.8% 0.107 265.1);

Tailwind

colors: {
  custom: {
    50: '#69709f',
    500: '#233b77',
    950: '#000000',
  },
}

SCSS

$custom: #233b77;
$custom-light: #69709f;
$custom-dark: #000000;

JSON

{
  "hex": "#233b77",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 119
  },
  "hsl": {
    "h": 222.857,
    "s": 54.545,
    "l": 30.196
  },
  "oklch": {
    "l": 0.36821,
    "c": 0.10691,
    "h": 265.1
  },
  "luminance": 0.04817
}

Semantic roles & 50–950 ramp

primary

#233B77

secondary

#AA8F4C

accent

#B44ADE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #233B77

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

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