#233571#233571

#233571 is a dark, moderate blue. Relative luminance 0.041; OKLCH L 35.0% C 0.106 H 268.0°. Best body text is #FFFFFF at 11.54:1 contrast (WCAG AA passes).

Color values

HEX	#233571
RGB	rgb(35, 53, 113)
HSL	hsl(226, 53%, 29%)
HSV	hsv(226, 69%, 44%)
CMYK	cmyk(69%, 53.1%, 0%, 55.7%)
CIE-LAB	lab(23.98, 14.32, -36.93)
CIE-LCH	lch(23.98, 39.61, 291.20°)
OKLab	oklab(34.99% -0.0037 -0.1059)
OKLCH	oklch(34.99% 0.106 268)
XYZ	xyz(4.9459, 4.0953, 16.1494)
Luminance	0.0410 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233571 #715F23

analogous

#235C71 #233571 #382371

triadic

#233571 #712335 #357123

tetradic

#233571 #71235C #715F23 #237138

square

#233571 #71235C #715F23 #237138

split-complementary

#233571 #713823 #5C7123

monochromatic

#070B17 #151F42 #233571 #314BA0 #4865C6

Accessibility & contrast

On white

11.54

#233571 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#233571 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233571

11.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233571	#FFFFFF	#000000	##FFFFFF
##233571	1.00	11.54	1.82	11.54
#FFFFFF	11.54	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#123D73

Deuteranopia (green-blind)

#003670

Tritanopia (blue-blind)

#00434D

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #233571;
/* rgb */ color: rgb(35, 53, 113);
/* oklch */ color: oklch(35.0% 0.106 268.0);

Tailwind

colors: {
  custom: {
    50: '#686b9a',
    500: '#233571',
    950: '#000000',
  },
}

SCSS

$custom: #233571;
$custom-light: #686b9a;
$custom-dark: #000000;

JSON

{
  "hex": "#233571",
  "rgb": {
    "r": 35,
    "g": 53,
    "b": 113
  },
  "hsl": {
    "h": 226.154,
    "s": 52.703,
    "l": 29.02
  },
  "oklch": {
    "l": 0.34993,
    "c": 0.10599,
    "h": 268
  },
  "luminance": 0.04096
}

Semantic roles & 50–950 ramp

primary

#233571

secondary

#A4904C

accent

#BB4CDC

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #233571

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

Preview Lab → · Contrast checker → · Palette generator →