#233F84#233F84

#233F84 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.7% C 0.121 H 264.7°. Best body text is #FFFFFF at 9.93:1 contrast (WCAG AA passes).

Color values

HEX	#233F84
RGB	rgb(35, 63, 132)
HSL	hsl(223, 58%, 33%)
HSV	hsv(223, 73%, 52%)
CMYK	cmyk(73.5%, 52.3%, 0%, 48.2%)
CIE-LAB	lab(28.32, 14.83, -41.92)
CIE-LCH	lch(28.32, 44.46, 289.48°)
OKLab	oklab(38.73% -0.0111 -0.1204)
OKLCH	oklch(38.73% 0.121 264.7)
XYZ	xyz(6.6340, 5.5776, 22.5523)
Luminance	0.0558 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233F84 #846823

analogous

#237084 #233F84 #372384

triadic

#233F84 #84233F #3F8423

tetradic

#233F84 #842370 #846823 #238437

square

#233F84 #842370 #846823 #238437

split-complementary

#233F84 #843723 #708423

monochromatic

#091123 #162854 #233F84 #3056B4 #5176D1

Accessibility & contrast

On white

9.93

#233F84 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#233F84 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233F84

9.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233F84	#FFFFFF	#000000	##FFFFFF
##233F84	1.00	9.93	2.12	9.93
#FFFFFF	9.93	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#154786

Deuteranopia (green-blind)

#003F83

Tritanopia (blue-blind)

#004F5B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #233f84;
/* rgb */ color: rgb(35, 63, 132);
/* oklch */ color: oklch(38.7% 0.121 264.7);

Tailwind

colors: {
  custom: {
    50: '#6b73a8',
    500: '#233f84',
    950: '#000000',
  },
}

SCSS

$custom: #233f84;
$custom-light: #6b73a8;
$custom-dark: #000000;

JSON

{
  "hex": "#233f84",
  "rgb": {
    "r": 35,
    "g": 63,
    "b": 132
  },
  "hsl": {
    "h": 222.68,
    "s": 58.084,
    "l": 32.745
  },
  "oklch": {
    "l": 0.3873,
    "c": 0.12095,
    "h": 264.7
  },
  "luminance": 0.05578
}

Semantic roles & 50–950 ramp

primary

#233F84

secondary

#B4974E

accent

#B546E1

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #233F84

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

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