#233D5A#233D5A

#233D5A is a dark, moderate cyan. Relative luminance 0.044; OKLCH L 35.4% C 0.060 H 252.3°. Best body text is #FFFFFF at 11.13:1 contrast (WCAG AA passes).

Color values

HEX#233D5A
RGBrgb(35, 61, 90)
HSLhsl(212, 44%, 25%)
HSVhsv(212, 61%, 35%)
CMYKcmyk(61.1%, 32.2%, 0%, 64.7%)
CIE-LABlab(25.05, -0.09, -20.36)
CIE-LCHlch(25.05, 20.36, 269.75°)
OKLaboklab(35.35% -0.0183 -0.0573)
OKLCHoklch(35.35% 0.06 252.3)
XYZxyz(4.2067, 4.4326, 10.3048)
Luminance0.0443 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#233D5A #5A4023
analogous
#23595A #233D5A #24235A
triadic
#233D5A #5A233D #3D5A23
tetradic
#233D5A #5A2359 #5A4023 #235A24
square
#233D5A #5A2359 #5A4023 #235A24
split-complementary
#233D5A #5A2423 #595A23
monochromatic
#090F16 #121F2E #233D5A #345B86 #4579B2

Accessibility & contrast

On white

11.13
#233D5A on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.89
#233D5A on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233D5A
11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##233D5A#FFFFFF#000000##FFFFFF
##233D5A1.0011.131.8911.13
#FFFFFF11.131.0021.001.00
#0000001.8921.001.0021.00
##FFFFFF11.131.0021.001.00

Color blindness preview

Protanopia (red-blind)
#313E5B
Deuteranopia (green-blind)
#2A3959
Tritanopia (blue-blind)
#004447
Achromatopsia (no color)
#3B3B3B

Design tokens & code

CSS
--color: #233d5a;
/* rgb */ color: rgb(35, 61, 90);
/* oklch */ color: oklch(35.4% 0.060 252.3);
Tailwind
colors: {
  custom: {
    50: '#637289',
    500: '#233d5a',
    950: '#000000',
  },
}
SCSS
$custom: #233d5a;
$custom-light: #637289;
$custom-dark: #000000;
JSON
{
  "hex": "#233d5a",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 90
  },
  "hsl": {
    "h": 211.636,
    "s": 44,
    "l": 24.51
  },
  "oklch": {
    "l": 0.3535,
    "c": 0.06017,
    "h": 252.3
  },
  "luminance": 0.04433
}

Semantic roles & 50–950 ramp

primary
#233D5A
secondary
#8E6E4B
accent
#9754D4
background
#F6F6F8
surface
#EBECF0
border
#C6C7CB
text
#05070B
muted
#7A7A7C

Preview Lab

Preview with #233D5A

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

Preview Lab → · Contrast checker → · Palette generator →

#233D5A Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva