#233D6A#233D6A

#233D6A is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.4% C 0.084 H 260.7°. Best body text is #FFFFFF at 10.79:1 contrast (WCAG AA passes).

Color values

HEX	#233D6A
RGB	rgb(35, 61, 106)
HSL	hsl(218, 50%, 28%)
HSV	hsv(218, 67%, 42%)
CMYK	cmyk(67%, 42.5%, 0%, 58.4%)
CIE-LAB	lab(25.97, 5.99, -29.27)
CIE-LCH	lch(25.97, 29.88, 281.56°)
OKLab	oklab(36.36% -0.0137 -0.0833)
OKLCH	oklch(36.36% 0.084 260.7)
XYZ	xyz(4.9625, 4.7350, 14.2853)
Luminance	0.0474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233D6A #6A5023

analogous

#23616A #233D6A #2C236A

triadic

#233D6A #6A233D #3D6A23

tetradic

#233D6A #6A2361 #6A5023 #236A2C

square

#233D6A #6A2361 #6A5023 #236A2C

split-complementary

#233D6A #6A2C23 #616A23

monochromatic

#080D17 #14233C #233D6A #325798 #4673C2

Accessibility & contrast

On white

10.79

#233D6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#233D6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233D6A

10.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233D6A	#FFFFFF	#000000	##FFFFFF
##233D6A	1.00	10.79	1.95	10.79
#FFFFFF	10.79	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29416C

Deuteranopia (green-blind)

#1F3A69

Tritanopia (blue-blind)

#00474E

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #233d6a;
/* rgb */ color: rgb(35, 61, 106);
/* oklch */ color: oklch(36.4% 0.084 260.7);

Tailwind

colors: {
  custom: {
    50: '#667295',
    500: '#233d6a',
    950: '#000000',
  },
}

SCSS

$custom: #233d6a;
$custom-light: #667295;
$custom-dark: #000000;

JSON

{
  "hex": "#233d6a",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 106
  },
  "hsl": {
    "h": 218.028,
    "s": 50.355,
    "l": 27.647
  },
  "oklch": {
    "l": 0.3636,
    "c": 0.08442,
    "h": 260.7
  },
  "luminance": 0.04735
}

Semantic roles & 50–950 ramp

primary

#233D6A

secondary

#9D7F4B

accent

#A74EDA

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #233D6A

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

Preview Lab → · Contrast checker → · Palette generator →