#233C74#233C74

#233C74 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 36.8% C 0.101 H 264.0°. Best body text is #FFFFFF at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#233C74
RGB	rgb(35, 60, 116)
HSL	hsl(221, 54%, 30%)
HSV	hsv(221, 70%, 45%)
CMYK	cmyk(69.8%, 48.3%, 0%, 54.5%)
CIE-LAB	lab(26.30, 10.59, -35.11)
CIE-LCH	lch(26.30, 36.68, 286.79°)
OKLab	oklab(36.83% -0.0105 -0.1005)
OKLCH	oklch(36.83% 0.101 264)
XYZ	xyz(5.4603, 4.8495, 17.1679)
Luminance	0.0485 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C74 #745B23

analogous

#236574 #233C74 #322374

triadic

#233C74 #74233C #3C7423

tetradic

#233C74 #742365 #745B23 #237432

square

#233C74 #742365 #745B23 #237432

split-complementary

#233C74 #743223 #657423

monochromatic

#070C18 #152445 #233C74 #3154A3 #4970C8

Accessibility & contrast

On white

10.66

#233C74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#233C74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C74

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C74	#FFFFFF	#000000	##FFFFFF
##233C74	1.00	10.66	1.97	10.66
#FFFFFF	10.66	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#204276

Deuteranopia (green-blind)

#103B73

Tritanopia (blue-blind)

#004952

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #233c74;
/* rgb */ color: rgb(35, 60, 116);
/* oklch */ color: oklch(36.8% 0.101 264.0);

Tailwind

colors: {
  custom: {
    50: '#68719c',
    500: '#233c74',
    950: '#000000',
  },
}

SCSS

$custom: #233c74;
$custom-light: #68719c;
$custom-dark: #000000;

JSON

{
  "hex": "#233c74",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 116
  },
  "hsl": {
    "h": 221.481,
    "s": 53.642,
    "l": 29.608
  },
  "oklch": {
    "l": 0.36828,
    "c": 0.10102,
    "h": 264
  },
  "luminance": 0.0485
}

Semantic roles & 50–950 ramp

primary

#233C74

secondary

#A78B4C

accent

#B04BDD

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #233C74

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

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