#2B537B#2B537B

#2B537B is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.2% C 0.081 H 250.2°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).

Color values

HEX#2B537B
RGBrgb(43, 83, 123)
HSLhsl(210, 48%, 33%)
HSVhsv(210, 65%, 48%)
CMYKcmyk(65%, 32.5%, 0%, 51.8%)
CIE-LABlab(34.25, -0.59, -26.86)
CIE-LCHlch(34.25, 26.87, 268.73°)
OKLaboklab(43.24% -0.0273 -0.0759)
OKLCHoklch(43.24% 0.081 250.2)
XYZxyz(7.6634, 8.1294, 19.9003)
Luminance0.0813 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#2B537B #7B532B
analogous
#2B7B7B #2B537B #2B2B7B
triadic
#2B537B #7B2B53 #537B2B
tetradic
#2B537B #7B2B7B #7B532B #2B7B2B
square
#2B537B #7B2B7B #7B532B #2B7B2B
split-complementary
#2B537B #7B2B2B #7B7B2B
monochromatic
#0B1620 #1B344E #2B537B #3B72A8 #5B90C6

Accessibility & contrast

On white

8.00
#2B537B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.63
#2B537B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B537B
8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##2B537B#FFFFFF#000000##FFFFFF
##2B537B1.008.002.638.00
#FFFFFF8.001.0021.001.00
#0000002.6321.001.0021.00
##FFFFFF8.001.0021.001.00

Color blindness preview

Protanopia (red-blind)
#42557D
Deuteranopia (green-blind)
#374D7A
Tritanopia (blue-blind)
#005C61
Achromatopsia (no color)
#515151

Design tokens & code

CSS
--color: #2b537b;
/* rgb */ color: rgb(43, 83, 123);
/* oklch */ color: oklch(43.2% 0.081 250.2);
Tailwind
colors: {
  custom: {
    50: '#6d83a1',
    500: '#2b537b',
    950: '#000000',
  },
}
SCSS
$custom: #2b537b;
$custom-light: #6d83a1;
$custom-dark: #000000;
JSON
{
  "hex": "#2b537b",
  "rgb": {
    "r": 43,
    "g": 83,
    "b": 123
  },
  "hsl": {
    "h": 210,
    "s": 48.193,
    "l": 32.549
  },
  "oklch": {
    "l": 0.43242,
    "c": 0.08063,
    "h": 250.2
  },
  "luminance": 0.0813
}

Semantic roles & 50–950 ramp

primary
#2B537B
secondary
#AB8156
accent
#9450D8
background
#F6F7F9
surface
#ECEEF2
border
#C7C9CC
text
#070A0F
muted
#7A7C7E

Preview Lab

Preview with #2B537B

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

Preview Lab → · Contrast checker → · Palette generator →

#2B537B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva