#233D7A#233D7A

#233D7A is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.5% C 0.109 H 264.4°. Best body text is #FFFFFF at 10.40:1 contrast (WCAG AA passes).

Color values

HEX	#233D7A
RGB	rgb(35, 61, 122)
HSL	hsl(222, 55%, 31%)
HSV	hsv(222, 71%, 48%)
CMYK	cmyk(71.3%, 50%, 0%, 52.2%)
CIE-LAB	lab(27.02, 12.26, -37.76)
CIE-LCH	lch(27.02, 39.70, 287.99°)
OKLab	oklab(37.51% -0.0106 -0.1082)
OKLCH	oklch(37.51% 0.109 264.4)
XYZ	xyz(5.8735, 5.0994, 19.0833)
Luminance	0.0510 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233D7A #7A6023

analogous

#23687A #233D7A #34237A

triadic

#233D7A #7A233D #3D7A23

tetradic

#233D7A #7A2368 #7A6023 #237A34

square

#233D7A #7A2368 #7A6023 #237A34

split-complementary

#233D7A #7A3423 #687A23

monochromatic

#080D1B #15254A #233D7A #3155AA #4C72CC

Accessibility & contrast

On white

10.40

#233D7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#233D7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233D7A

10.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233D7A	#FFFFFF	#000000	##FFFFFF
##233D7A	1.00	10.40	2.02	10.40
#FFFFFF	10.40	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C447C

Deuteranopia (green-blind)

#063C79

Tritanopia (blue-blind)

#004B55

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #233d7a;
/* rgb */ color: rgb(35, 61, 122);
/* oklch */ color: oklch(37.5% 0.109 264.4);

Tailwind

colors: {
  custom: {
    50: '#6972a1',
    500: '#233d7a',
    950: '#000000',
  },
}

SCSS

$custom: #233d7a;
$custom-light: #6972a1;
$custom-dark: #000000;

JSON

{
  "hex": "#233d7a",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 122
  },
  "hsl": {
    "h": 222.069,
    "s": 55.414,
    "l": 30.784
  },
  "oklch": {
    "l": 0.37507,
    "c": 0.10876,
    "h": 264.4
  },
  "luminance": 0.051
}

Semantic roles & 50–950 ramp

primary

#233D7A

secondary

#AD904C

accent

#B249DF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070F

muted

#7A7A7E

Preview Lab

Preview with #233D7A

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

Preview Lab → · Contrast checker → · Palette generator →