#153A7B#153A7B

#153A7B is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.3% C 0.119 H 260.8°. Best body text is #FFFFFF at 10.92:1 contrast (WCAG AA passes).

Color values

HEX#153A7B
RGBrgb(21, 58, 123)
HSLhsl(218, 71%, 28%)
HSVhsv(218, 83%, 48%)
CMYKcmyk(82.9%, 52.8%, 0%, 51.8%)
CIE-LABlab(25.61, 12.82, -40.69)
CIE-LCHlch(25.61, 42.66, 287.49°)
OKLaboklab(36.3% -0.019 -0.1172)
OKLCHoklch(36.3% 0.119 260.8)
XYZxyz(5.3962, 4.6150, 19.3414)
Luminance0.0462 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#153A7B #7B5615
analogous
#156D7B #153A7B #23157B
triadic
#153A7B #7B153A #3A7B15
tetradic
#153A7B #7B156D #7B5615 #157B23
square
#153A7B #7B156D #7B5615 #157B23
split-complementary
#153A7B #7B2315 #6D7B15
monochromatic
#040C1A #0C2147 #153A7B #1E53AF #2F6EDB

Accessibility & contrast

On white

10.92
#153A7B on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.92
#153A7B on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153A7B
10.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##153A7B#FFFFFF#000000##FFFFFF
##153A7B1.0010.921.9210.92
#FFFFFF10.921.0021.001.00
#0000001.9221.001.0021.00
##FFFFFF10.921.0021.001.00

Color blindness preview

Protanopia (red-blind)
#10427D
Deuteranopia (green-blind)
#00387A
Tritanopia (blue-blind)
#004A54
Achromatopsia (no color)
#3D3D3D

Design tokens & code

CSS
--color: #153a7b;
/* rgb */ color: rgb(21, 58, 123);
/* oklch */ color: oklch(36.3% 0.119 260.8);
Tailwind
colors: {
  custom: {
    50: '#656fa2',
    500: '#153a7b',
    950: '#000000',
  },
}
SCSS
$custom: #153a7b;
$custom-light: #656fa2;
$custom-dark: #000000;
JSON
{
  "hex": "#153a7b",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 123
  },
  "hsl": {
    "h": 218.235,
    "s": 70.833,
    "l": 28.235
  },
  "oklch": {
    "l": 0.36295,
    "c": 0.1187,
    "h": 260.8
  },
  "luminance": 0.04616
}

Semantic roles & 50–950 ramp

primary
#153A7B
secondary
#B0863B
accent
#AD3AEE
background
#F6F6FA
surface
#EBECF3
border
#C6C7CD
text
#06070F
muted
#7A7A7F

Preview Lab

Preview with #153A7B

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

Preview Lab → · Contrast checker → · Palette generator →

#153A7B Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva