#233A75#233A75

#233A75 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.4% C 0.105 H 265.5°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#233A75
RGB	rgb(35, 58, 117)
HSL	hsl(223, 54%, 30%)
HSV	hsv(223, 70%, 46%)
CMYK	cmyk(70.1%, 50.4%, 0%, 54.1%)
CIE-LAB	lab(25.77, 12.38, -36.61)
CIE-LCH	lch(25.77, 38.65, 288.69°)
OKLab	oklab(36.44% -0.0083 -0.1049)
OKLCH	oklch(36.44% 0.105 265.5)
XYZ	xyz(5.4160, 4.6673, 17.4416)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A75 #755E23

analogous

#236375 #233A75 #352375

triadic

#233A75 #75233A #3A7523

tetradic

#233A75 #752363 #755E23 #237535

square

#233A75 #752363 #755E23 #237535

split-complementary

#233A75 #753523 #637523

monochromatic

#070C18 #152346 #233A75 #3151A4 #4A6DC9

Accessibility & contrast

On white

10.86

#233A75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#233A75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A75

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A75	#FFFFFF	#000000	##FFFFFF
##233A75	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4177

Deuteranopia (green-blind)

#073974

Tritanopia (blue-blind)

#004852

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #233a75;
/* rgb */ color: rgb(35, 58, 117);
/* oklch */ color: oklch(36.4% 0.105 265.5);

Tailwind

colors: {
  custom: {
    50: '#686f9d',
    500: '#233a75',
    950: '#000000',
  },
}

SCSS

$custom: #233a75;
$custom-light: #686f9d;
$custom-dark: #000000;

JSON

{
  "hex": "#233a75",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 117
  },
  "hsl": {
    "h": 223.171,
    "s": 53.947,
    "l": 29.804
  },
  "oklch": {
    "l": 0.3644,
    "c": 0.10524,
    "h": 265.5
  },
  "luminance": 0.04668
}

Semantic roles & 50–950 ramp

primary

#233A75

secondary

#A88E4C

accent

#B44ADD

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #233A75

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

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