#153E7C#153E7C

#153E7C is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.3% C 0.115 H 258.9°. Best body text is #FFFFFF at 10.44:1 contrast (WCAG AA passes).

Color values

HEX	#153E7C
RGB	rgb(21, 62, 124)
HSL	hsl(216, 71%, 28%)
HSV	hsv(216, 83%, 49%)
CMYK	cmyk(83.1%, 50%, 0%, 51.4%)
CIE-LAB	lab(26.90, 10.43, -39.23)
CIE-LCH	lch(26.90, 40.59, 284.88°)
OKLab	oklab(37.31% -0.0222 -0.1128)
OKLCH	oklch(37.31% 0.115 258.9)
XYZ	xyz(5.6686, 5.0592, 19.7426)
Luminance	0.0506 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153E7C #7C5315

analogous

#15717C #153E7C #20157C

triadic

#153E7C #7C153E #3E7C15

tetradic

#153E7C #7C1571 #7C5315 #157C20

square

#153E7C #7C1571 #7C5315 #157C20

split-complementary

#153E7C #7C2015 #717C15

monochromatic

#040D1A #0C2448 #153E7C #1E58B0 #3074DC

Accessibility & contrast

On white

10.44

#153E7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#153E7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153E7C

10.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153E7C	#FFFFFF	#000000	##FFFFFF
##153E7C	1.00	10.44	2.01	10.44
#FFFFFF	10.44	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A457E

Deuteranopia (green-blind)

#003B7B

Tritanopia (blue-blind)

#004D57

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #153e7c;
/* rgb */ color: rgb(21, 62, 124);
/* oklch */ color: oklch(37.3% 0.115 258.9);

Tailwind

colors: {
  custom: {
    50: '#6572a2',
    500: '#153e7c',
    950: '#000000',
  },
}

SCSS

$custom: #153e7c;
$custom-light: #6572a2;
$custom-dark: #000000;

JSON

{
  "hex": "#153e7c",
  "rgb": {
    "r": 21,
    "g": 62,
    "b": 124
  },
  "hsl": {
    "h": 216.117,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.3731,
    "c": 0.11494,
    "h": 258.9
  },
  "luminance": 0.0506
}

Semantic roles & 50–950 ramp

primary

#153E7C

secondary

#B1823C

accent

#A63AEE

background

#F6F6FA

surface

#EBECF3

border

#C6C7CD

text

#06080F

muted

#7A7B7F

Preview Lab

Preview with #153E7C

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

Preview Lab → · Contrast checker → · Palette generator →