#233D91#233D91

#233D91 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.4% C 0.142 H 266.6°. Best body text is #FFFFFF at 9.78:1 contrast (WCAG AA passes).

Color values

HEX	#233D91
RGB	rgb(35, 61, 145)
HSL	hsl(226, 61%, 35%)
HSV	hsv(226, 76%, 57%)
CMYK	cmyk(75.9%, 57.9%, 0%, 43.1%)
CIE-LAB	lab(28.74, 21.33, -49.27)
CIE-LCH	lch(28.74, 53.69, 293.40°)
OKLab	oklab(39.36% -0.0083 -0.1421)
OKLCH	oklch(39.36% 0.142 266.6)
XYZ	xyz(7.4709, 5.7383, 27.4964)
Luminance	0.0574 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233D91 #917723

analogous

#237491 #233D91 #402391

triadic

#233D91 #91233D #3D9123

tetradic

#233D91 #912374 #917723 #239140

square

#233D91 #912374 #917723 #239140

split-complementary

#233D91 #914023 #749123

monochromatic

#0B142E #172860 #233D91 #2F52C2 #5876D7

Accessibility & contrast

On white

9.78

#233D91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#233D91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233D91

9.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233D91	#FFFFFF	#000000	##FFFFFF
##233D91	1.00	9.78	2.15	9.78
#FFFFFF	9.78	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004994

Deuteranopia (green-blind)

#003F8F

Tritanopia (blue-blind)

#005261

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #233d91;
/* rgb */ color: rgb(35, 61, 145);
/* oklch */ color: oklch(39.4% 0.142 266.6);

Tailwind

colors: {
  custom: {
    50: '#6f72b2',
    500: '#233d91',
    950: '#000000',
  },
}

SCSS

$custom: #233d91;
$custom-light: #6f72b2;
$custom-dark: #000000;

JSON

{
  "hex": "#233d91",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 145
  },
  "hsl": {
    "h": 225.818,
    "s": 61.111,
    "l": 35.294
  },
  "oklch": {
    "l": 0.39363,
    "c": 0.14235,
    "h": 266.6
  },
  "luminance": 0.05739
}

Semantic roles & 50–950 ramp

primary

#233D91

secondary

#BBA355

accent

#BE44E4

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #233D91

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

Preview Lab → · Contrast checker → · Palette generator →