#153E7B#153E7B

#153E7B is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.2% C 0.113 H 258.6°. Best body text is #FFFFFF at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#153E7B
RGB	rgb(21, 62, 123)
HSL	hsl(216, 71%, 28%)
HSV	hsv(216, 83%, 48%)
CMYK	cmyk(82.9%, 49.6%, 0%, 51.8%)
CIE-LAB	lab(26.83, 10.01, -38.72)
CIE-LCH	lch(26.83, 39.99, 284.49°)
OKLab	oklab(37.23% -0.0223 -0.1113)
OKLCH	oklch(37.23% 0.113 258.6)
XYZ	xyz(5.6057, 5.0341, 19.4113)
Luminance	0.0503 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153E7B #7B5215

analogous

#15717B #153E7B #1F157B

triadic

#153E7B #7B153E #3E7B15

tetradic

#153E7B #7B1571 #7B5215 #157B1F

square

#153E7B #7B1571 #7B5215 #157B1F

split-complementary

#153E7B #7B1F15 #717B15

monochromatic

#040D1A #0C2447 #153E7B #1E58AF #2F74DB

Accessibility & contrast

On white

10.46

#153E7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#153E7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153E7B

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153E7B	#FFFFFF	#000000	##FFFFFF
##153E7B	1.00	10.46	2.01	10.46
#FFFFFF	10.46	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B447D

Deuteranopia (green-blind)

#003B7A

Tritanopia (blue-blind)

#004D56

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #153e7b;
/* rgb */ color: rgb(21, 62, 123);
/* oklch */ color: oklch(37.2% 0.113 258.6);

Tailwind

colors: {
  custom: {
    50: '#6472a2',
    500: '#153e7b',
    950: '#000000',
  },
}

SCSS

$custom: #153e7b;
$custom-light: #6472a2;
$custom-dark: #000000;

JSON

{
  "hex": "#153e7b",
  "rgb": {
    "r": 21,
    "g": 62,
    "b": 123
  },
  "hsl": {
    "h": 215.882,
    "s": 70.833,
    "l": 28.235
  },
  "oklch": {
    "l": 0.37233,
    "c": 0.11349,
    "h": 258.6
  },
  "luminance": 0.05035
}

Semantic roles & 50–950 ramp

primary

#153E7B

secondary

#B0813B

accent

#A53AEE

background

#F6F6FA

surface

#EBECF3

border

#C6C7CD

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #153E7B

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

Preview Lab → · Contrast checker → · Palette generator →