#153D7C#153D7C

#153D7C is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.1% C 0.116 H 259.4°. Best body text is #FFFFFF at 10.55:1 contrast (WCAG AA passes).

Color values

HEX	#153D7C
RGB	rgb(21, 61, 124)
HSL	hsl(217, 71%, 28%)
HSV	hsv(217, 83%, 49%)
CMYK	cmyk(83.1%, 50.8%, 0%, 51.4%)
CIE-LAB	lab(26.60, 11.13, -39.72)
CIE-LCH	lch(26.60, 41.25, 285.65°)
OKLab	oklab(37.08% -0.0213 -0.1143)
OKLCH	oklch(37.08% 0.116 259.4)
XYZ	xyz(5.6148, 4.9515, 19.7247)
Luminance	0.0495 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153D7C #7C5415

analogous

#15707C #153D7C #20157C

triadic

#153D7C #7C153D #3D7C15

tetradic

#153D7C #7C1570 #7C5415 #157C20

square

#153D7C #7C1570 #7C5415 #157C20

split-complementary

#153D7C #7C2015 #707C15

monochromatic

#040D1A #0C2348 #153D7C #1E57B0 #3072DC

Accessibility & contrast

On white

10.55

#153D7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#153D7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D7C

10.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153D7C	#FFFFFF	#000000	##FFFFFF
##153D7C	1.00	10.55	1.99	10.55
#FFFFFF	10.55	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#18447E

Deuteranopia (green-blind)

#003B7B

Tritanopia (blue-blind)

#004C56

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #153d7c;
/* rgb */ color: rgb(21, 61, 124);
/* oklch */ color: oklch(37.1% 0.116 259.4);

Tailwind

colors: {
  custom: {
    50: '#6571a2',
    500: '#153d7c',
    950: '#000000',
  },
}

SCSS

$custom: #153d7c;
$custom-light: #6571a2;
$custom-dark: #000000;

JSON

{
  "hex": "#153d7c",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 124
  },
  "hsl": {
    "h": 216.699,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.37075,
    "c": 0.11624,
    "h": 259.4
  },
  "luminance": 0.04952
}

Semantic roles & 50–950 ramp

primary

#153D7C

secondary

#B1843C

accent

#A83AEE

background

#F6F6FA

surface

#EBECF3

border

#C6C7CD

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #153D7C

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

Preview Lab → · Contrast checker → · Palette generator →