#233A91#233A91

#233A91 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 38.7% C 0.146 H 267.6°. Best body text is #FFFFFF at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#233A91
RGB	rgb(35, 58, 145)
HSL	hsl(227, 61%, 35%)
HSV	hsv(227, 76%, 57%)
CMYK	cmyk(75.9%, 60%, 0%, 43.1%)
CIE-LAB	lab(27.92, 23.38, -50.62)
CIE-LCH	lch(27.92, 55.75, 294.79°)
OKLab	oklab(38.75% -0.006 -0.1461)
OKLCH	oklch(38.75% 0.146 267.6)
XYZ	xyz(7.3153, 5.4270, 27.4446)
Luminance	0.0543 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233A91 #917A23

analogous

#237191 #233A91 #432391

triadic

#233A91 #91233A #3A9123

tetradic

#233A91 #912371 #917A23 #239143

square

#233A91 #912371 #917A23 #239143

split-complementary

#233A91 #914323 #719123

monochromatic

#0B132E #172660 #233A91 #2F4EC2 #5872D7

Accessibility & contrast

On white

10.07

#233A91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#233A91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233A91

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233A91	#FFFFFF	#000000	##FFFFFF
##233A91	1.00	10.07	2.09	10.07
#FFFFFF	10.07	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004794

Deuteranopia (green-blind)

#003D8F

Tritanopia (blue-blind)

#00505F

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #233a91;
/* rgb */ color: rgb(35, 58, 145);
/* oklch */ color: oklch(38.7% 0.146 267.6);

Tailwind

colors: {
  custom: {
    50: '#6f6fb2',
    500: '#233a91',
    950: '#000000',
  },
}

SCSS

$custom: #233a91;
$custom-light: #6f6fb2;
$custom-dark: #000000;

JSON

{
  "hex": "#233a91",
  "rgb": {
    "r": 35,
    "g": 58,
    "b": 145
  },
  "hsl": {
    "h": 227.455,
    "s": 61.111,
    "l": 35.294
  },
  "oklch": {
    "l": 0.38746,
    "c": 0.14622,
    "h": 267.6
  },
  "luminance": 0.05428
}

Semantic roles & 50–950 ramp

primary

#233A91

secondary

#BBA655

accent

#C344E4

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #233A91

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

Preview Lab → · Contrast checker → · Palette generator →