#233B6A#233B6A

#233B6A is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.9% C 0.087 H 262.5°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX#233B6A
RGBrgb(35, 59, 106)
HSLhsl(220, 50%, 28%)
HSVhsv(220, 67%, 42%)
CMYKcmyk(67%, 44.3%, 0%, 58.4%)
CIE-LABlab(25.34, 7.37, -30.27)
CIE-LCHlch(25.34, 31.16, 283.69°)
OKLaboklab(35.88% -0.0114 -0.0863)
OKLCHoklch(35.88% 0.087 262.5)
XYZxyz(4.8577, 4.5254, 14.2504)
Luminance0.0453 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#233B6A #6A5223
analogous
#235F6A #233B6A #2E236A
triadic
#233B6A #6A233B #3B6A23
tetradic
#233B6A #6A235F #6A5223 #236A2E
square
#233B6A #6A235F #6A5223 #236A2E
split-complementary
#233B6A #6A2E23 #5F6A23
monochromatic
#080D17 #14213C #233B6A #325598 #4670C2

Accessibility & contrast

On white

11.02
#233B6A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.91
#233B6A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B6A
11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##233B6A#FFFFFF#000000##FFFFFF
##233B6A1.0011.021.9111.02
#FFFFFF11.021.0021.001.00
#0000001.9121.001.0021.00
##FFFFFF11.021.0021.001.00

Color blindness preview

Protanopia (red-blind)
#26406C
Deuteranopia (green-blind)
#1B3969
Tritanopia (blue-blind)
#00464D
Achromatopsia (no color)
#3C3C3C

Design tokens & code

CSS
--color: #233b6a;
/* rgb */ color: rgb(35, 59, 106);
/* oklch */ color: oklch(35.9% 0.087 262.5);
Tailwind
colors: {
  custom: {
    50: '#667095',
    500: '#233b6a',
    950: '#000000',
  },
}
SCSS
$custom: #233b6a;
$custom-light: #667095;
$custom-dark: #000000;
JSON
{
  "hex": "#233b6a",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 106
  },
  "hsl": {
    "h": 219.718,
    "s": 50.355,
    "l": 27.647
  },
  "oklch": {
    "l": 0.35875,
    "c": 0.08701,
    "h": 262.5
  },
  "luminance": 0.04526
}

Semantic roles & 50–950 ramp

primary
#233B6A
secondary
#9D824B
accent
#AB4EDA
background
#F6F6F9
surface
#EBECF1
border
#C6C7CB
text
#06070D
muted
#7A7A7E

Preview Lab

Preview with #233B6A

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

Preview Lab → · Contrast checker → · Palette generator →

#233B6A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva