#233A7F#233A7F

#233A7F is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.2% C 0.120 H 266.6°. Best body text is #FFFFFF at 10.59:1 contrast (WCAG AA passes).

Color values

HEX	#233A7F
RGB	rgb(35, 58, 127)
HSL	hsl(225, 57%, 32%)
HSV	hsv(225, 72%, 50%)
CMYK	cmyk(72.4%, 54.3%, 0%, 50.2%)
CIE-LAB	lab(26.49, 16.33, -41.75)
CIE-LCH	lch(26.49, 44.83, 291.36°)
OKLab	oklab(37.22% -0.0071 -0.12)
OKLCH	oklch(37.22% 0.12 266.6)
XYZ	xyz(6.0356, 4.9151, 20.7052)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A7F #7F6823

analogous

#23687F #233A7F #3A237F

triadic

#233A7F #7F233A #3A7F23

tetradic

#233A7F #7F2368 #7F6823 #237F3A

square

#233A7F #7F2368 #7F6823 #237F3A

split-complementary

#233A7F #7F3A23 #687F23

monochromatic

#090E1F #16244F #233A7F #3050AF #4E6ECE

Accessibility & contrast

On white

10.59

#233A7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#233A7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A7F

10.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A7F	#FFFFFF	#000000	##FFFFFF
##233A7F	1.00	10.59	1.98	10.59
#FFFFFF	10.59	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C4381

Deuteranopia (green-blind)

#003B7E

Tritanopia (blue-blind)

#004A56

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #233a7f;
/* rgb */ color: rgb(35, 58, 127);
/* oklch */ color: oklch(37.2% 0.120 266.6);

Tailwind

colors: {
  custom: {
    50: '#6b6fa5',
    500: '#233a7f',
    950: '#000000',
  },
}

SCSS

$custom: #233a7f;
$custom-light: #6b6fa5;
$custom-dark: #000000;

JSON

{
  "hex": "#233a7f",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 127
  },
  "hsl": {
    "h": 225,
    "s": 56.79,
    "l": 31.765
  },
  "oklch": {
    "l": 0.37224,
    "c": 0.12024,
    "h": 266.6
  },
  "luminance": 0.04916
}

Semantic roles & 50–950 ramp

primary

#233A7F

secondary

#B1984C

accent

#BA48E0

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #233A7F

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

Preview Lab → · Contrast checker → · Palette generator →