#233A74#233A74

#233A74 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.4% C 0.104 H 265.3°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#233A74
RGB	rgb(35, 58, 116)
HSL	hsl(223, 54%, 30%)
HSV	hsv(223, 70%, 45%)
CMYK	cmyk(69.8%, 50%, 0%, 54.5%)
CIE-LAB	lab(25.70, 11.99, -36.09)
CIE-LCH	lch(25.70, 38.03, 288.38°)
OKLab	oklab(36.36% -0.0085 -0.1034)
OKLCH	oklch(36.36% 0.104 265.3)
XYZ	xyz(5.3575, 4.6439, 17.1336)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A74 #745D23

analogous

#236374 #233A74 #352374

triadic

#233A74 #74233A #3A7423

tetradic

#233A74 #742363 #745D23 #237435

square

#233A74 #742363 #745D23 #237435

split-complementary

#233A74 #743523 #637423

monochromatic

#070C18 #152245 #233A74 #3152A3 #496DC8

Accessibility & contrast

On white

10.89

#233A74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#233A74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A74

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A74	#FFFFFF	#000000	##FFFFFF
##233A74	1.00	10.89	1.93	10.89
#FFFFFF	10.89	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4176

Deuteranopia (green-blind)

#093973

Tritanopia (blue-blind)

#004751

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #233a74;
/* rgb */ color: rgb(35, 58, 116);
/* oklch */ color: oklch(36.4% 0.104 265.3);

Tailwind

colors: {
  custom: {
    50: '#686f9c',
    500: '#233a74',
    950: '#000000',
  },
}

SCSS

$custom: #233a74;
$custom-light: #686f9c;
$custom-dark: #000000;

JSON

{
  "hex": "#233a74",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 116
  },
  "hsl": {
    "h": 222.963,
    "s": 53.642,
    "l": 29.608
  },
  "oklch": {
    "l": 0.36364,
    "c": 0.10372,
    "h": 265.3
  },
  "luminance": 0.04644
}

Semantic roles & 50–950 ramp

primary

#233A74

secondary

#A78D4C

accent

#B34BDD

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #233A74

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

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