#21436F#21436F

#21436F is a dark, moderate cyan. Relative luminance 0.055; OKLCH L 38.1% C 0.085 H 255.8°. Best body text is #FFFFFF at 10.01:1 contrast (WCAG AA passes).

Color values

HEX#21436F
RGBrgb(33, 67, 111)
HSLhsl(214, 54%, 28%)
HSVhsv(214, 70%, 44%)
CMYKcmyk(70.3%, 39.6%, 0%, 56.5%)
CIE-LABlab(28.07, 3.45, -29.12)
CIE-LCHlch(28.07, 29.32, 276.76°)
OKLaboklab(38.07% -0.021 -0.0828)
OKLCHoklch(38.07% 0.085 255.8)
XYZxyz(5.5026, 5.4848, 15.8045)
Luminance0.0549 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#21436F #6F4D21
analogous
#216A6F #21436F #26216F
triadic
#21436F #6F2143 #436F21
tetradic
#21436F #6F216A #6F4D21 #216F26
square
#21436F #6F216A #6F4D21 #216F26
split-complementary
#21436F #6F2621 #6A6F21
monochromatic
#070E18 #132740 #21436F #2F5F9E #437DC7

Accessibility & contrast

On white

10.01
#21436F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.10
#21436F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21436F
10.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##21436F#FFFFFF#000000##FFFFFF
##21436F1.0010.012.1010.01
#FFFFFF10.011.0021.001.00
#0000002.1021.001.0021.00
##FFFFFF10.011.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2F4671
Deuteranopia (green-blind)
#243F6E
Tritanopia (blue-blind)
#004D53
Achromatopsia (no color)
#424242

Design tokens & code

CSS
--color: #21436f;
/* rgb */ color: rgb(33, 67, 111);
/* oklch */ color: oklch(38.1% 0.085 255.8);
Tailwind
colors: {
  custom: {
    50: '#667698',
    500: '#21436f',
    950: '#000000',
  },
}
SCSS
$custom: #21436f;
$custom-light: #667698;
$custom-dark: #000000;
JSON
{
  "hex": "#21436f",
  "rgb": {
    "r": 33,
    "g": 67,
    "b": 111
  },
  "hsl": {
    "h": 213.846,
    "s": 54.167,
    "l": 28.235
  },
  "oklch": {
    "l": 0.3807,
    "c": 0.08542,
    "h": 255.8
  },
  "luminance": 0.05485
}

Semantic roles & 50–950 ramp

primary
#21436F
secondary
#A37C49
accent
#9D4ADE
background
#F6F7F9
surface
#EBEDF2
border
#C6C8CC
text
#06080E
muted
#7A7B7E

Preview Lab

Preview with #21436F

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

Preview Lab → · Contrast checker → · Palette generator →

#21436F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva