#233A64#233A64

#233A64 is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.2% C 0.079 H 261.5°. Best body text is #FFFFFF at 11.29:1 contrast (WCAG AA passes).

Color values

HEX	#233A64
RGB	rgb(35, 58, 100)
HSL	hsl(219, 48%, 26%)
HSV	hsv(219, 65%, 39%)
CMYK	cmyk(65%, 42%, 0%, 60.8%)
CIE-LAB	lab(24.65, 5.74, -27.50)
CIE-LCH	lch(24.65, 28.09, 281.80°)
OKLab	oklab(35.22% -0.0116 -0.0781)
OKLCH	oklch(35.22% 0.079 261.5)
XYZ	xyz(4.5056, 4.3031, 12.6473)
Luminance	0.0430 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A64 #644D23

analogous

#235B64 #233A64 #2D2364

triadic

#233A64 #64233A #3A6423

tetradic

#233A64 #64235B #644D23 #23642D

square

#233A64 #64235B #644D23 #23642D

split-complementary

#233A64 #642D23 #5B6423

monochromatic

#080D17 #132037 #233A64 #335491 #446FBE

Accessibility & contrast

On white

11.29

#233A64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#233A64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A64

11.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A64	#FFFFFF	#000000	##FFFFFF
##233A64	1.00	11.29	1.86	11.29
#FFFFFF	11.29	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#283E66

Deuteranopia (green-blind)

#1F3863

Tritanopia (blue-blind)

#00434A

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #233a64;
/* rgb */ color: rgb(35, 58, 100);
/* oklch */ color: oklch(35.2% 0.079 261.5);

Tailwind

colors: {
  custom: {
    50: '#656f90',
    500: '#233a64',
    950: '#000000',
  },
}

SCSS

$custom: #233a64;
$custom-light: #656f90;
$custom-dark: #000000;

JSON

{
  "hex": "#233a64",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 100
  },
  "hsl": {
    "h": 218.769,
    "s": 48.148,
    "l": 26.471
  },
  "oklch": {
    "l": 0.35221,
    "c": 0.079,
    "h": 261.5
  },
  "luminance": 0.04304
}

Semantic roles & 50–950 ramp

primary

#233A64

secondary

#987D4B

accent

#A850D8

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #233A64

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

Preview Lab → · Contrast checker → · Palette generator →