#233D7F#233D7F

#233D7F is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.9% C 0.116 H 265.1°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#233D7F
RGB	rgb(35, 61, 127)
HSL	hsl(223, 57%, 32%)
HSV	hsv(223, 72%, 50%)
CMYK	cmyk(72.4%, 52%, 0%, 50.2%)
CIE-LAB	lab(27.37, 14.24, -40.33)
CIE-LCH	lch(27.37, 42.77, 289.44°)
OKLab	oklab(37.89% -0.0099 -0.1158)
OKLCH	oklch(37.89% 0.116 265.1)
XYZ	xyz(6.1913, 5.2265, 20.7571)
Luminance	0.0523 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233D7F #7F6523

analogous

#236B7F #233D7F #37237F

triadic

#233D7F #7F233D #3D7F23

tetradic

#233D7F #7F236B #7F6523 #237F37

square

#233D7F #7F236B #7F6523 #237F37

split-complementary

#233D7F #7F3723 #6B7F23

monochromatic

#090F1F #16264F #233D7F #3054AF #4E72CE

Accessibility & contrast

On white

10.27

#233D7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#233D7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233D7F

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233D7F	#FFFFFF	#000000	##FFFFFF
##233D7F	1.00	10.27	2.05	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#164581

Deuteranopia (green-blind)

#003D7E

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #233d7f;
/* rgb */ color: rgb(35, 61, 127);
/* oklch */ color: oklch(37.9% 0.116 265.1);

Tailwind

colors: {
  custom: {
    50: '#6a72a5',
    500: '#233d7f',
    950: '#000000',
  },
}

SCSS

$custom: #233d7f;
$custom-light: #6a72a5;
$custom-dark: #000000;

JSON

{
  "hex": "#233d7f",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 127
  },
  "hsl": {
    "h": 223.043,
    "s": 56.79,
    "l": 31.765
  },
  "oklch": {
    "l": 0.37891,
    "c": 0.11622,
    "h": 265.1
  },
  "luminance": 0.05227
}

Semantic roles & 50–950 ramp

primary

#233D7F

secondary

#B1954C

accent

#B548E0

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #233D7F

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

Preview Lab → · Contrast checker → · Palette generator →