#233A6F#233A6F

#233A6F is a dark, moderate blue. Relative luminance 0.045; OKLCH L 36.0% C 0.096 H 264.4°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#233A6F
RGB	rgb(35, 58, 111)
HSL	hsl(222, 52%, 29%)
HSV	hsv(222, 68%, 44%)
CMYK	cmyk(68.5%, 47.7%, 0%, 56.5%)
CIE-LAB	lab(25.35, 10.02, -33.45)
CIE-LCH	lch(25.35, 34.92, 286.68°)
OKLab	oklab(35.99% -0.0093 -0.0956)
OKLCH	oklch(35.99% 0.096 264.4)
XYZ	xyz(5.0744, 4.5307, 15.6429)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A6F #6F5823

analogous

#23606F #233A6F #32236F

triadic

#233A6F #6F233A #3A6F23

tetradic

#233A6F #6F2360 #6F5823 #236F32

square

#233A6F #6F2360 #6F5823 #236F32

split-complementary

#233A6F #6F3223 #606F23

monochromatic

#070C17 #142240 #233A6F #32529E #476DC5

Accessibility & contrast

On white

11.02

#233A6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#233A6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A6F

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A6F	#FFFFFF	#000000	##FFFFFF
##233A6F	1.00	11.02	1.91	11.02
#FFFFFF	11.02	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#204071

Deuteranopia (green-blind)

#13396E

Tritanopia (blue-blind)

#00464F

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #233a6f;
/* rgb */ color: rgb(35, 58, 111);
/* oklch */ color: oklch(36.0% 0.096 264.4);

Tailwind

colors: {
  custom: {
    50: '#676f99',
    500: '#233a6f',
    950: '#000000',
  },
}

SCSS

$custom: #233a6f;
$custom-light: #676f99;
$custom-dark: #000000;

JSON

{
  "hex": "#233a6f",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 111
  },
  "hsl": {
    "h": 221.842,
    "s": 52.055,
    "l": 28.627
  },
  "oklch": {
    "l": 0.35992,
    "c": 0.09606,
    "h": 264.4
  },
  "luminance": 0.04531
}

Semantic roles & 50–950 ramp

primary

#233A6F

secondary

#A2884C

accent

#B04CDB

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #233A6F

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

Preview Lab → · Contrast checker → · Palette generator →