#233D75#233D75

#233D75 is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.1% C 0.101 H 263.5°. Best body text is #FFFFFF at 10.52:1 contrast (WCAG AA passes).

Color values

HEX	#233D75
RGB	rgb(35, 61, 117)
HSL	hsl(221, 54%, 30%)
HSV	hsv(221, 70%, 46%)
CMYK	cmyk(70.1%, 47.9%, 0%, 54.1%)
CIE-LAB	lab(26.67, 10.29, -35.15)
CIE-LCH	lch(26.67, 36.63, 286.32°)
OKLab	oklab(37.14% -0.0114 -0.1006)
OKLCH	oklch(37.14% 0.101 263.5)
XYZ	xyz(5.5716, 4.9786, 17.4935)
Luminance	0.0498 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233D75 #755B23

analogous

#236675 #233D75 #322375

triadic

#233D75 #75233D #3D7523

tetradic

#233D75 #752366 #755B23 #237532

square

#233D75 #752366 #755B23 #237532

split-complementary

#233D75 #753223 #667523

monochromatic

#070C18 #152446 #233D75 #3156A4 #4A72C9

Accessibility & contrast

On white

10.52

#233D75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#233D75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233D75

10.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233D75	#FFFFFF	#000000	##FFFFFF
##233D75	1.00	10.52	2.00	10.52
#FFFFFF	10.52	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#214377

Deuteranopia (green-blind)

#113C74

Tritanopia (blue-blind)

#004A53

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #233d75;
/* rgb */ color: rgb(35, 61, 117);
/* oklch */ color: oklch(37.1% 0.101 263.5);

Tailwind

colors: {
  custom: {
    50: '#68729d',
    500: '#233d75',
    950: '#000000',
  },
}

SCSS

$custom: #233d75;
$custom-light: #68729d;
$custom-dark: #000000;

JSON

{
  "hex": "#233d75",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 117
  },
  "hsl": {
    "h": 220.976,
    "s": 53.947,
    "l": 29.804
  },
  "oklch": {
    "l": 0.37135,
    "c": 0.10121,
    "h": 263.5
  },
  "luminance": 0.04979
}

Semantic roles & 50–950 ramp

primary

#233D75

secondary

#A88B4C

accent

#AF4ADD

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #233D75

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

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