#233B7F#233B7F

#233B7F is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.4% C 0.119 H 266.1°. Best body text is #FFFFFF at 10.48:1 contrast (WCAG AA passes).

Color values

HEX	#233B7F
RGB	rgb(35, 59, 127)
HSL	hsl(224, 57%, 32%)
HSV	hsv(224, 72%, 50%)
CMYK	cmyk(72.4%, 53.5%, 0%, 50.2%)
CIE-LAB	lab(26.78, 15.63, -41.28)
CIE-LCH	lch(26.78, 44.14, 290.74°)
OKLab	oklab(37.45% -0.008 -0.1186)
OKLCH	oklch(37.45% 0.119 266.1)
XYZ	xyz(6.0865, 5.0169, 20.7222)
Luminance	0.0502 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B7F #7F6723

analogous

#23697F #233B7F #39237F

triadic

#233B7F #7F233B #3B7F23

tetradic

#233B7F #7F2369 #7F6723 #237F39

square

#233B7F #7F2369 #7F6723 #237F39

split-complementary

#233B7F #7F3923 #697F23

monochromatic

#090E1F #16254F #233B7F #3051AF #4E70CE

Accessibility & contrast

On white

10.48

#233B7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#233B7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B7F

10.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B7F	#FFFFFF	#000000	##FFFFFF
##233B7F	1.00	10.48	2.00	10.48
#FFFFFF	10.48	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#104481

Deuteranopia (green-blind)

#003B7E

Tritanopia (blue-blind)

#004B57

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #233b7f;
/* rgb */ color: rgb(35, 59, 127);
/* oklch */ color: oklch(37.4% 0.119 266.1);

Tailwind

colors: {
  custom: {
    50: '#6a70a5',
    500: '#233b7f',
    950: '#000000',
  },
}

SCSS

$custom: #233b7f;
$custom-light: #6a70a5;
$custom-dark: #000000;

JSON

{
  "hex": "#233b7f",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 127
  },
  "hsl": {
    "h": 224.348,
    "s": 56.79,
    "l": 31.765
  },
  "oklch": {
    "l": 0.37445,
    "c": 0.11889,
    "h": 266.1
  },
  "luminance": 0.05018
}

Semantic roles & 50–950 ramp

primary

#233B7F

secondary

#B1974C

accent

#B848E0

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #233B7F

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

Preview Lab → · Contrast checker → · Palette generator →