#233C75#233C75

#233C75 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 36.9% C 0.103 H 264.2°. Best body text is #FFFFFF at 10.64:1 contrast (WCAG AA passes).

Color values

HEX	#233C75
RGB	rgb(35, 60, 117)
HSL	hsl(222, 54%, 30%)
HSV	hsv(222, 70%, 46%)
CMYK	cmyk(70.1%, 48.7%, 0%, 54.1%)
CIE-LAB	lab(26.37, 10.99, -35.64)
CIE-LCH	lch(26.37, 37.29, 287.13°)
OKLab	oklab(36.9% -0.0104 -0.102)
OKLCH	oklch(36.9% 0.103 264.2)
XYZ	xyz(5.5188, 4.8729, 17.4759)
Luminance	0.0487 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C75 #755C23

analogous

#236575 #233C75 #332375

triadic

#233C75 #75233C #3C7523

tetradic

#233C75 #752365 #755C23 #237533

square

#233C75 #752365 #755C23 #237533

split-complementary

#233C75 #753323 #657523

monochromatic

#070C18 #152446 #233C75 #3154A4 #4A70C9

Accessibility & contrast

On white

10.64

#233C75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#233C75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C75

10.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C75	#FFFFFF	#000000	##FFFFFF
##233C75	1.00	10.64	1.97	10.64
#FFFFFF	10.64	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4277

Deuteranopia (green-blind)

#0E3B74

Tritanopia (blue-blind)

#004952

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #233c75;
/* rgb */ color: rgb(35, 60, 117);
/* oklch */ color: oklch(36.9% 0.103 264.2);

Tailwind

colors: {
  custom: {
    50: '#68719d',
    500: '#233c75',
    950: '#000000',
  },
}

SCSS

$custom: #233c75;
$custom-light: #68719d;
$custom-dark: #000000;

JSON

{
  "hex": "#233c75",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 117
  },
  "hsl": {
    "h": 221.707,
    "s": 53.947,
    "l": 29.804
  },
  "oklch": {
    "l": 0.36902,
    "c": 0.10255,
    "h": 264.2
  },
  "luminance": 0.04873
}

Semantic roles & 50–950 ramp

primary

#233C75

secondary

#A88C4C

accent

#B14ADD

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #233C75

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

Preview Lab → · Contrast checker → · Palette generator →