#153B7F#153B7F

#153B7F is a dark, vivid blue. Relative luminance 0.048; OKLCH L 36.9% C 0.123 H 261.0°. Best body text is #FFFFFF at 10.69:1 contrast (WCAG AA passes).

Color values

HEX	#153B7F
RGB	rgb(21, 59, 127)
HSL	hsl(218, 72%, 29%)
HSV	hsv(218, 83%, 50%)
CMYK	cmyk(83.5%, 53.5%, 0%, 50.2%)
CIE-LAB	lab(26.21, 13.79, -42.23)
CIE-LCH	lch(26.21, 44.42, 288.08°)
OKLab	oklab(36.85% -0.0193 -0.1217)
OKLCH	oklch(36.85% 0.123 261)
XYZ	xyz(5.7026, 4.8190, 20.7042)
Luminance	0.0482 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153B7F #7F5915

analogous

#15707F #153B7F #24157F

triadic

#153B7F #7F153B #3B7F15

tetradic

#153B7F #7F1570 #7F5915 #157F24

square

#153B7F #7F1570 #7F5915 #157F24

split-complementary

#153B7F #7F2415 #707F15

monochromatic

#040C1A #0C234A #153B7F #1E53B4 #316FDD

Accessibility & contrast

On white

10.69

#153B7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#153B7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B7F

10.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153B7F	#FFFFFF	#000000	##FFFFFF
##153B7F	1.00	10.69	1.96	10.69
#FFFFFF	10.69	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C4381

Deuteranopia (green-blind)

#00397E

Tritanopia (blue-blind)

#004C57

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #153b7f;
/* rgb */ color: rgb(21, 59, 127);
/* oklch */ color: oklch(36.9% 0.123 261.0);

Tailwind

colors: {
  custom: {
    50: '#6670a5',
    500: '#153b7f',
    950: '#000000',
  },
}

SCSS

$custom: #153b7f;
$custom-light: #6670a5;
$custom-dark: #000000;

JSON

{
  "hex": "#153b7f",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 127
  },
  "hsl": {
    "h": 218.491,
    "s": 71.622,
    "l": 29.02
  },
  "oklch": {
    "l": 0.36852,
    "c": 0.12319,
    "h": 261
  },
  "luminance": 0.0482
}

Semantic roles & 50–950 ramp

primary

#153B7F

secondary

#B4893C

accent

#AE39EE

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #153B7F

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

Preview Lab → · Contrast checker → · Palette generator →