#153F7F#153F7F

#153F7F is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.8% C 0.118 H 259.0°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#153F7F
RGB	rgb(21, 63, 127)
HSL	hsl(216, 72%, 29%)
HSV	hsv(216, 83%, 50%)
CMYK	cmyk(83.5%, 50.4%, 0%, 50.2%)
CIE-LAB	lab(27.42, 10.98, -40.27)
CIE-LCH	lch(27.42, 41.74, 285.25°)
OKLab	oklab(37.78% -0.0225 -0.1158)
OKLCH	oklch(37.78% 0.118 259)
XYZ	xyz(5.9161, 5.2460, 20.7753)
Luminance	0.0525 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153F7F #7F5515

analogous

#15747F #153F7F #20157F

triadic

#153F7F #7F153F #3F7F15

tetradic

#153F7F #7F1574 #7F5515 #157F20

square

#153F7F #7F1574 #7F5515 #157F20

split-complementary

#153F7F #7F2015 #747F15

monochromatic

#040D1A #0C254A #153F7F #1E59B4 #3175DD

Accessibility & contrast

On white

10.25

#153F7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#153F7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153F7F

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153F7F	#FFFFFF	#000000	##FFFFFF
##153F7F	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194681

Deuteranopia (green-blind)

#003C7E

Tritanopia (blue-blind)

#004E59

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #153f7f;
/* rgb */ color: rgb(21, 63, 127);
/* oklch */ color: oklch(37.8% 0.118 259.0);

Tailwind

colors: {
  custom: {
    50: '#6573a5',
    500: '#153f7f',
    950: '#000000',
  },
}

SCSS

$custom: #153f7f;
$custom-light: #6573a5;
$custom-dark: #000000;

JSON

{
  "hex": "#153f7f",
  "rgb": {
    "r": 21,
    "g": 63,
    "b": 127
  },
  "hsl": {
    "h": 216.226,
    "s": 71.622,
    "l": 29.02
  },
  "oklch": {
    "l": 0.3778,
    "c": 0.11798,
    "h": 259
  },
  "luminance": 0.05247
}

Semantic roles & 50–950 ramp

primary

#153F7F

secondary

#B4843C

accent

#A739EE

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #153F7F

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

Preview Lab → · Contrast checker → · Palette generator →