#233F77#233F77

#233F77 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.8% C 0.102 H 262.6°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#233F77
RGB	rgb(35, 63, 119)
HSL	hsl(220, 55%, 30%)
HSV	hsv(220, 71%, 47%)
CMYK	cmyk(70.6%, 47.1%, 0%, 53.3%)
CIE-LAB	lab(27.42, 9.69, -35.22)
CIE-LCH	lch(27.42, 36.53, 285.39°)
OKLab	oklab(37.75% -0.0131 -0.1007)
OKLCH	oklch(37.75% 0.102 262.6)
XYZ	xyz(5.7992, 5.2437, 18.1557)
Luminance	0.0524 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233F77 #775B23

analogous

#236977 #233F77 #312377

triadic

#233F77 #77233F #3F7723

tetradic

#233F77 #772369 #775B23 #237731

square

#233F77 #772369 #775B23 #237731

split-complementary

#233F77 #773123 #697723

monochromatic

#070D18 #152648 #233F77 #3158A6 #4A75CA

Accessibility & contrast

On white

10.25

#233F77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#233F77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233F77

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233F77	#FFFFFF	#000000	##FFFFFF
##233F77	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#234579

Deuteranopia (green-blind)

#143D76

Tritanopia (blue-blind)

#004C55

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #233f77;
/* rgb */ color: rgb(35, 63, 119);
/* oklch */ color: oklch(37.8% 0.102 262.6);

Tailwind

colors: {
  custom: {
    50: '#68739f',
    500: '#233f77',
    950: '#000000',
  },
}

SCSS

$custom: #233f77;
$custom-light: #68739f;
$custom-dark: #000000;

JSON

{
  "hex": "#233f77",
  "rgb": {
    "r": 35,
    "g": 63,
    "b": 119
  },
  "hsl": {
    "h": 220,
    "s": 54.545,
    "l": 30.196
  },
  "oklch": {
    "l": 0.3775,
    "c": 0.10159,
    "h": 262.6
  },
  "luminance": 0.05244
}

Semantic roles & 50–950 ramp

primary

#233F77

secondary

#AA8B4C

accent

#AD4ADE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080E

muted

#7A7B7E

Preview Lab

Preview with #233F77

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

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