#233A6A#233A6A

#233A6A is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.6% C 0.088 H 263.3°. Best body text is #FFFFFF at 11.14:1 contrast (WCAG AA passes).

Color values

HEX	#233A6A
RGB	rgb(35, 58, 106)
HSL	hsl(221, 50%, 28%)
HSV	hsv(221, 67%, 42%)
CMYK	cmyk(67%, 45.3%, 0%, 58.4%)
CIE-LAB	lab(25.03, 8.07, -30.77)
CIE-LCH	lch(25.03, 31.81, 284.70°)
OKLab	oklab(35.63% -0.0103 -0.0877)
OKLCH	oklch(35.63% 0.088 263.3)
XYZ	xyz(4.8068, 4.4236, 14.2334)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A6A #6A5323

analogous

#235E6A #233A6A #2F236A

triadic

#233A6A #6A233A #3A6A23

tetradic

#233A6A #6A235E #6A5323 #236A2F

square

#233A6A #6A235E #6A5323 #236A2F

split-complementary

#233A6A #6A2F23 #5E6A23

monochromatic

#080D17 #14213C #233A6A #325398 #466EC2

Accessibility & contrast

On white

11.14

#233A6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#233A6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A6A

11.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A6A	#FFFFFF	#000000	##FFFFFF
##233A6A	1.00	11.14	1.88	11.14
#FFFFFF	11.14	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#243F6C

Deuteranopia (green-blind)

#193869

Tritanopia (blue-blind)

#00454C

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #233a6a;
/* rgb */ color: rgb(35, 58, 106);
/* oklch */ color: oklch(35.6% 0.088 263.3);

Tailwind

colors: {
  custom: {
    50: '#666f95',
    500: '#233a6a',
    950: '#000000',
  },
}

SCSS

$custom: #233a6a;
$custom-light: #666f95;
$custom-dark: #000000;

JSON

{
  "hex": "#233a6a",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 106
  },
  "hsl": {
    "h": 220.563,
    "s": 50.355,
    "l": 27.647
  },
  "oklch": {
    "l": 0.35634,
    "c": 0.08834,
    "h": 263.3
  },
  "luminance": 0.04424
}

Semantic roles & 50–950 ramp

primary

#233A6A

secondary

#9D834B

accent

#AD4EDA

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #233A6A

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

Preview Lab → · Contrast checker → · Palette generator →