#153C7F#153C7F

#153C7F is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.1% C 0.122 H 260.5°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#153C7F
RGB	rgb(21, 60, 127)
HSL	hsl(218, 72%, 29%)
HSV	hsv(218, 83%, 50%)
CMYK	cmyk(83.5%, 52.8%, 0%, 50.2%)
CIE-LAB	lab(26.51, 13.08, -41.74)
CIE-LCH	lch(26.51, 43.74, 287.40°)
OKLab	oklab(37.08% -0.0201 -0.1202)
OKLCH	oklch(37.08% 0.122 260.5)
XYZ	xyz(5.7545, 4.9228, 20.7215)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153C7F #7F5815

analogous

#15717F #153C7F #23157F

triadic

#153C7F #7F153C #3C7F15

tetradic

#153C7F #7F1571 #7F5815 #157F23

square

#153C7F #7F1571 #7F5815 #157F23

split-complementary

#153C7F #7F2315 #717F15

monochromatic

#040C1A #0C234A #153C7F #1E55B4 #3171DD

Accessibility & contrast

On white

10.58

#153C7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#153C7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153C7F

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153C7F	#FFFFFF	#000000	##FFFFFF
##153C7F	1.00	10.58	1.98	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#104481

Deuteranopia (green-blind)

#003A7E

Tritanopia (blue-blind)

#004C57

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #153c7f;
/* rgb */ color: rgb(21, 60, 127);
/* oklch */ color: oklch(37.1% 0.122 260.5);

Tailwind

colors: {
  custom: {
    50: '#6671a5',
    500: '#153c7f',
    950: '#000000',
  },
}

SCSS

$custom: #153c7f;
$custom-light: #6671a5;
$custom-dark: #000000;

JSON

{
  "hex": "#153c7f",
  "rgb": {
    "r": 21,
    "g": 60,
    "b": 127
  },
  "hsl": {
    "h": 217.925,
    "s": 71.622,
    "l": 29.02
  },
  "oklch": {
    "l": 0.37082,
    "c": 0.12188,
    "h": 260.5
  },
  "luminance": 0.04923
}

Semantic roles & 50–950 ramp

primary

#153C7F

secondary

#B4883C

accent

#AC39EE

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #153C7F

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

Preview Lab → · Contrast checker → · Palette generator →