#233B7B#233B7B

#233B7B is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.1% C 0.113 H 265.7°. Best body text is #FFFFFF at 10.59:1 contrast (WCAG AA passes).

Color values

HEX	#233B7B
RGB	rgb(35, 59, 123)
HSL	hsl(224, 56%, 31%)
HSV	hsv(224, 72%, 48%)
CMYK	cmyk(71.5%, 52%, 0%, 51.8%)
CIE-LAB	lab(26.49, 14.05, -39.24)
CIE-LCH	lch(26.49, 41.68, 289.70°)
OKLab	oklab(37.13% -0.0085 -0.1126)
OKLCH	oklch(37.13% 0.113 265.7)
XYZ	xyz(5.8310, 4.9147, 19.3764)
Luminance	0.0491 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B7B #7B6323

analogous

#23677B #233B7B #37237B

triadic

#233B7B #7B233B #3B7B23

tetradic

#233B7B #7B2367 #7B6323 #237B37

square

#233B7B #7B2367 #7B6323 #237B37

split-complementary

#233B7B #7B3723 #677B23

monochromatic

#080D1C #15244B #233B7B #3152AB #4C6FCC

Accessibility & contrast

On white

10.59

#233B7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#233B7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B7B

10.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B7B	#FFFFFF	#000000	##FFFFFF
##233B7B	1.00	10.59	1.98	10.59
#FFFFFF	10.59	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16437D

Deuteranopia (green-blind)

#003B7A

Tritanopia (blue-blind)

#004A55

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #233b7b;
/* rgb */ color: rgb(35, 59, 123);
/* oklch */ color: oklch(37.1% 0.113 265.7);

Tailwind

colors: {
  custom: {
    50: '#6a70a2',
    500: '#233b7b',
    950: '#000000',
  },
}

SCSS

$custom: #233b7b;
$custom-light: #6a70a2;
$custom-dark: #000000;

JSON

{
  "hex": "#233b7b",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 123
  },
  "hsl": {
    "h": 223.636,
    "s": 55.696,
    "l": 30.98
  },
  "oklch": {
    "l": 0.37129,
    "c": 0.11294,
    "h": 265.7
  },
  "luminance": 0.04915
}

Semantic roles & 50–950 ramp

primary

#233B7B

secondary

#AE934C

accent

#B649DF

background

#F6F6FA

surface

#ECECF3

border

#C7C7CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #233B7B

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

Preview Lab → · Contrast checker → · Palette generator →