#233B90#233B90

#233B90 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 38.9% C 0.144 H 267.3°. Best body text is #FFFFFF at 10.00:1 contrast (WCAG AA passes).

Color values

HEX	#233B90
RGB	rgb(35, 59, 144)
HSL	hsl(227, 61%, 35%)
HSV	hsv(227, 76%, 56%)
CMYK	cmyk(75.7%, 59%, 0%, 43.5%)
CIE-LAB	lab(28.11, 22.31, -49.69)
CIE-LCH	lch(28.11, 54.47, 294.18°)
OKLab	oklab(38.86% -0.0068 -0.1434)
OKLCH	oklch(38.86% 0.144 267.3)
XYZ	xyz(7.2894, 5.4981, 27.0572)
Luminance	0.0550 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B90 #907823

analogous

#237190 #233B90 #412390

triadic

#233B90 #90233B #3B9023

tetradic

#233B90 #902371 #907823 #239041

square

#233B90 #902371 #907823 #239041

split-complementary

#233B90 #904123 #719023

monochromatic

#0B132E #17275F #233B90 #2F4FC1 #5773D6

Accessibility & contrast

On white

10.00

#233B90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#233B90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B90

10.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B90	#FFFFFF	#000000	##FFFFFF
##233B90	1.00	10.00	2.10	10.00
#FFFFFF	10.00	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004893

Deuteranopia (green-blind)

#003D8E

Tritanopia (blue-blind)

#00505F

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #233b90;
/* rgb */ color: rgb(35, 59, 144);
/* oklch */ color: oklch(38.9% 0.144 267.3);

Tailwind

colors: {
  custom: {
    50: '#6f70b1',
    500: '#233b90',
    950: '#000000',
  },
}

SCSS

$custom: #233b90;
$custom-light: #6f70b1;
$custom-dark: #000000;

JSON

{
  "hex": "#233b90",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 144
  },
  "hsl": {
    "h": 226.789,
    "s": 60.894,
    "l": 35.098
  },
  "oklch": {
    "l": 0.38863,
    "c": 0.14352,
    "h": 267.3
  },
  "luminance": 0.05499
}

Semantic roles & 50–950 ramp

primary

#233B90

secondary

#BAA454

accent

#C144E4

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #233B90

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

Preview Lab → · Contrast checker → · Palette generator →