#233A66#233A66

#233A66 is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.4% C 0.082 H 262.2°. Best body text is #FFFFFF at 11.24:1 contrast (WCAG AA passes).

Color values

HEX	#233A66
RGB	rgb(35, 58, 102)
HSL	hsl(219, 49%, 27%)
HSV	hsv(219, 66%, 40%)
CMYK	cmyk(65.7%, 43.1%, 0%, 60%)
CIE-LAB	lab(24.77, 6.52, -28.60)
CIE-LCH	lch(24.77, 29.33, 282.84°)
OKLab	oklab(35.36% -0.0112 -0.0814)
OKLCH	oklch(35.36% 0.082 262.2)
XYZ	xyz(4.6036, 4.3423, 13.1633)
Luminance	0.0434 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A66 #664F23

analogous

#235C66 #233A66 #2E2366

triadic

#233A66 #66233A #3A6623

tetradic

#233A66 #66235C #664F23 #23662E

square

#233A66 #66235C #664F23 #23662E

split-complementary

#233A66 #662E23 #5C6623

monochromatic

#080D17 #132038 #233A66 #335494 #446EBF

Accessibility & contrast

On white

11.24

#233A66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#233A66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A66

11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A66	#FFFFFF	#000000	##FFFFFF
##233A66	1.00	11.24	1.87	11.24
#FFFFFF	11.24	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#273E68

Deuteranopia (green-blind)

#1D3865

Tritanopia (blue-blind)

#00444B

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #233a66;
/* rgb */ color: rgb(35, 58, 102);
/* oklch */ color: oklch(35.4% 0.082 262.2);

Tailwind

colors: {
  custom: {
    50: '#656f92',
    500: '#233a66',
    950: '#000000',
  },
}

SCSS

$custom: #233a66;
$custom-light: #656f92;
$custom-dark: #000000;

JSON

{
  "hex": "#233a66",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 102
  },
  "hsl": {
    "h": 219.403,
    "s": 48.905,
    "l": 26.863
  },
  "oklch": {
    "l": 0.35357,
    "c": 0.08212,
    "h": 262.2
  },
  "luminance": 0.04343
}

Semantic roles & 50–950 ramp

primary

#233A66

secondary

#9A7F4B

accent

#A94FD8

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #233A66

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

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