#153A5F#153A5F

#153A5F is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.2% C 0.078 H 251.2°. Best body text is #FFFFFF at 11.65:1 contrast (WCAG AA passes).

Color values

HEX#153A5F
RGBrgb(21, 58, 95)
HSLhsl(210, 64%, 23%)
HSVhsv(210, 78%, 37%)
CMYKcmyk(77.9%, 38.9%, 0%, 62.7%)
CIE-LABlab(23.71, 1.11, -25.78)
CIE-LCHlch(23.71, 25.81, 272.46°)
OKLaboklab(34.21% -0.025 -0.0733)
OKLCHoklch(34.21% 0.078 251.2)
XYZxyz(3.8871, 4.0113, 11.3937)
Luminance0.0401 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#153A5F #5F3A15
analogous
#155F5F #153A5F #15155F
triadic
#153A5F #5F153A #3A5F15
tetradic
#153A5F #5F155F #5F3A15 #155F15
square
#153A5F #5F155F #5F3A15 #155F15
split-complementary
#153A5F #5F1515 #5F5F15
monochromatic
#060F19 #0A1B2D #153A5F #205991 #2B77C3

Accessibility & contrast

On white

11.65
#153A5F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.80
#153A5F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153A5F
11.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##153A5F#FFFFFF#000000##FFFFFF
##153A5F1.0011.651.8011.65
#FFFFFF11.651.0021.001.00
#0000001.8021.001.0021.00
##FFFFFF11.651.0021.001.00

Color blindness preview

Protanopia (red-blind)
#293C61
Deuteranopia (green-blind)
#1E355E
Tritanopia (blue-blind)
#004348
Achromatopsia (no color)
#383838

Design tokens & code

CSS
--color: #153a5f;
/* rgb */ color: rgb(21, 58, 95);
/* oklch */ color: oklch(34.2% 0.078 251.2);
Tailwind
colors: {
  custom: {
    50: '#5e6f8c',
    500: '#153a5f',
    950: '#000000',
  },
}
SCSS
$custom: #153a5f;
$custom-light: #5e6f8c;
$custom-dark: #000000;
JSON
{
  "hex": "#153a5f",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 95
  },
  "hsl": {
    "h": 210,
    "s": 63.793,
    "l": 22.745
  },
  "oklch": {
    "l": 0.34214,
    "c": 0.07751,
    "h": 251.2
  },
  "luminance": 0.04012
}

Semantic roles & 50–950 ramp

primary
#153A5F
secondary
#96683A
accent
#9441E7
background
#F5F6F8
surface
#E9ECF0
border
#C5C7CB
text
#05070C
muted
#797A7D

Preview Lab

Preview with #153A5F

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

Preview Lab → · Contrast checker → · Palette generator →

#153A5F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva