#153D7E#153D7E

#153D7E is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.2% C 0.119 H 259.8°. Best body text is #FFFFFF at 10.50:1 contrast (WCAG AA passes).

Color values

HEX	#153D7E
RGB	rgb(21, 61, 126)
HSL	hsl(217, 71%, 29%)
HSV	hsv(217, 83%, 49%)
CMYK	cmyk(83.3%, 51.6%, 0%, 50.6%)
CIE-LAB	lab(26.74, 11.96, -40.74)
CIE-LCH	lch(26.74, 42.46, 286.36°)
OKLab	oklab(37.23% -0.021 -0.1173)
OKLCH	oklch(37.23% 0.119 259.8)
XYZ	xyz(5.7425, 5.0026, 20.3976)
Luminance	0.0500 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153D7E #7E5615

analogous

#15727E #153D7E #22157E

triadic

#153D7E #7E153D #3D7E15

tetradic

#153D7E #7E1572 #7E5615 #157E22

square

#153D7E #7E1572 #7E5615 #157E22

split-complementary

#153D7E #7E2215 #727E15

monochromatic

#040D1A #0C244A #153D7E #1E56B2 #3172DD

Accessibility & contrast

On white

10.50

#153D7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#153D7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D7E

10.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153D7E	#FFFFFF	#000000	##FFFFFF
##153D7E	1.00	10.50	2.00	10.50
#FFFFFF	10.50	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#154480

Deuteranopia (green-blind)

#003B7D

Tritanopia (blue-blind)

#004D57

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #153d7e;
/* rgb */ color: rgb(21, 61, 126);
/* oklch */ color: oklch(37.2% 0.119 259.8);

Tailwind

colors: {
  custom: {
    50: '#6571a4',
    500: '#153d7e',
    950: '#000000',
  },
}

SCSS

$custom: #153d7e;
$custom-light: #6571a4;
$custom-dark: #000000;

JSON

{
  "hex": "#153d7e",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 126
  },
  "hsl": {
    "h": 217.143,
    "s": 71.429,
    "l": 28.824
  },
  "oklch": {
    "l": 0.37233,
    "c": 0.11913,
    "h": 259.8
  },
  "luminance": 0.05003
}

Semantic roles & 50–950 ramp

primary

#153D7E

secondary

#B3863C

accent

#A93AEE

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #153D7E

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

Preview Lab → · Contrast checker → · Palette generator →