#233D7D#233D7D

#233D7D is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.7% C 0.113 H 264.8°. Best body text is #FFFFFF at 10.32:1 contrast (WCAG AA passes).

Color values

HEX	#233D7D
RGB	rgb(35, 61, 125)
HSL	hsl(223, 56%, 31%)
HSV	hsv(223, 72%, 49%)
CMYK	cmyk(72%, 51.2%, 0%, 51%)
CIE-LAB	lab(27.23, 13.45, -39.31)
CIE-LCH	lch(27.23, 41.54, 288.89°)
OKLab	oklab(37.74% -0.0102 -0.1128)
OKLCH	oklch(37.74% 0.113 264.8)
XYZ	xyz(6.0623, 5.1749, 20.0774)
Luminance	0.0517 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233D7D #7D6323

analogous

#236A7D #233D7D #36237D

triadic

#233D7D #7D233D #3D7D23

tetradic

#233D7D #7D236A #7D6323 #237D36

square

#233D7D #7D236A #7D6323 #237D36

split-complementary

#233D7D #7D3623 #6A7D23

monochromatic

#080E1D #16264D #233D7D #3054AD #4D72CD

Accessibility & contrast

On white

10.32

#233D7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#233D7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233D7D

10.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233D7D	#FFFFFF	#000000	##FFFFFF
##233D7D	1.00	10.32	2.04	10.32
#FFFFFF	10.32	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19457F

Deuteranopia (green-blind)

#003C7C

Tritanopia (blue-blind)

#004C57

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #233d7d;
/* rgb */ color: rgb(35, 61, 125);
/* oklch */ color: oklch(37.7% 0.113 264.8);

Tailwind

colors: {
  custom: {
    50: '#6a72a3',
    500: '#233d7d',
    950: '#000000',
  },
}

SCSS

$custom: #233d7d;
$custom-light: #6a72a3;
$custom-dark: #000000;

JSON

{
  "hex": "#233d7d",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 125
  },
  "hsl": {
    "h": 222.667,
    "s": 56.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.37736,
    "c": 0.11325,
    "h": 264.8
  },
  "luminance": 0.05175
}

Semantic roles & 50–950 ramp

primary

#233D7D

secondary

#AF934C

accent

#B448E0

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #233D7D

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

Preview Lab → · Contrast checker → · Palette generator →