#233B6A#233B6A

#233B6A is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.9% C 0.087 H 262.5°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#233B6A
RGB	rgb(35, 59, 106)
HSL	hsl(220, 50%, 28%)
HSV	hsv(220, 67%, 42%)
CMYK	cmyk(67%, 44.3%, 0%, 58.4%)
CIE-LAB	lab(25.34, 7.37, -30.27)
CIE-LCH	lch(25.34, 31.16, 283.69°)
OKLab	oklab(35.88% -0.0114 -0.0863)
OKLCH	oklch(35.88% 0.087 262.5)
XYZ	xyz(4.8577, 4.5254, 14.2504)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B6A #6A5223

analogous

#235F6A #233B6A #2E236A

triadic

#233B6A #6A233B #3B6A23

tetradic

#233B6A #6A235F #6A5223 #236A2E

square

#233B6A #6A235F #6A5223 #236A2E

split-complementary

#233B6A #6A2E23 #5F6A23

monochromatic

#080D17 #14213C #233B6A #325598 #4670C2

Accessibility & contrast

On white

11.02

#233B6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#233B6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B6A

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B6A	#FFFFFF	#000000	##FFFFFF
##233B6A	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)

#26406C

Deuteranopia (green-blind)

#1B3969

Tritanopia (blue-blind)

#00464D

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #233b6a;
/* rgb */ color: rgb(35, 59, 106);
/* oklch */ color: oklch(35.9% 0.087 262.5);

Tailwind

colors: {
  custom: {
    50: '#667095',
    500: '#233b6a',
    950: '#000000',
  },
}

SCSS

$custom: #233b6a;
$custom-light: #667095;
$custom-dark: #000000;

JSON

{
  "hex": "#233b6a",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 106
  },
  "hsl": {
    "h": 219.718,
    "s": 50.355,
    "l": 27.647
  },
  "oklch": {
    "l": 0.35875,
    "c": 0.08701,
    "h": 262.5
  },
  "luminance": 0.04526
}

Semantic roles & 50–950 ramp

primary

#233B6A

secondary

#9D824B

accent

#AB4EDA

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #233B6A

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

Preview Lab → · Contrast checker → · Palette generator →