#233A5E#233A5E

#233A5E is a dark, moderate blue. Relative luminance 0.042; OKLCH L 34.8% C 0.070 H 259.0°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#233A5E
RGB	rgb(35, 58, 94)
HSL	hsl(217, 46%, 25%)
HSV	hsv(217, 63%, 37%)
CMYK	cmyk(62.8%, 38.3%, 0%, 63.1%)
CIE-LAB	lab(24.29, 3.45, -24.16)
CIE-LCH	lch(24.29, 24.41, 278.13°)
OKLab	oklab(34.83% -0.0132 -0.0684)
OKLCH	oklch(34.83% 0.07 259)
XYZ	xyz(4.2259, 4.1912, 11.1738)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A5E #5E4723

analogous

#23575E #233A5E #29235E

triadic

#233A5E #5E233A #3A5E23

tetradic

#233A5E #5E2357 #5E4723 #235E29

square

#233A5E #5E2357 #5E4723 #235E29

split-complementary

#233A5E #5E2923 #575E23

monochromatic

#080E16 #121E31 #233A5E #34568B #4471B7

Accessibility & contrast

On white

11.42

#233A5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#233A5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A5E

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A5E	#FFFFFF	#000000	##FFFFFF
##233A5E	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3D5F

Deuteranopia (green-blind)

#23375D

Tritanopia (blue-blind)

#004247

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #233a5e;
/* rgb */ color: rgb(35, 58, 94);
/* oklch */ color: oklch(34.8% 0.070 259.0);

Tailwind

colors: {
  custom: {
    50: '#646f8c',
    500: '#233a5e',
    950: '#000000',
  },
}

SCSS

$custom: #233a5e;
$custom-light: #646f8c;
$custom-dark: #000000;

JSON

{
  "hex": "#233a5e",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 94
  },
  "hsl": {
    "h": 216.61,
    "s": 45.736,
    "l": 25.294
  },
  "oklch": {
    "l": 0.34829,
    "c": 0.06967,
    "h": 259
  },
  "luminance": 0.04192
}

Semantic roles & 50–950 ramp

primary

#233A5E

secondary

#92764B

accent

#A252D5

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #233A5E

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

Preview Lab → · Contrast checker → · Palette generator →