#153D7F#153D7F

#153D7F is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.3% C 0.121 H 260.0°. Best body text is #FFFFFF at 10.47:1 contrast (WCAG AA passes).

Color values

HEX	#153D7F
RGB	rgb(21, 61, 127)
HSL	hsl(217, 72%, 29%)
HSV	hsv(217, 83%, 50%)
CMYK	cmyk(83.5%, 52%, 0%, 50.2%)
CIE-LAB	lab(26.82, 12.38, -41.25)
CIE-LCH	lch(26.82, 43.07, 286.71°)
OKLab	oklab(37.31% -0.0209 -0.1188)
OKLCH	oklch(37.31% 0.121 260)
XYZ	xyz(5.8074, 5.0285, 20.7391)
Luminance	0.0503 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153D7F #7F5715

analogous

#15727F #153D7F #22157F

triadic

#153D7F #7F153D #3D7F15

tetradic

#153D7F #7F1572 #7F5715 #157F22

square

#153D7F #7F1572 #7F5715 #157F22

split-complementary

#153D7F #7F2215 #727F15

monochromatic

#040D1A #0C244A #153D7F #1E56B4 #3172DD

Accessibility & contrast

On white

10.47

#153D7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#153D7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D7F

10.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153D7F	#FFFFFF	#000000	##FFFFFF
##153D7F	1.00	10.47	2.01	10.47
#FFFFFF	10.47	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#144481

Deuteranopia (green-blind)

#003B7E

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #153d7f;
/* rgb */ color: rgb(21, 61, 127);
/* oklch */ color: oklch(37.3% 0.121 260.0);

Tailwind

colors: {
  custom: {
    50: '#6671a5',
    500: '#153d7f',
    950: '#000000',
  },
}

SCSS

$custom: #153d7f;
$custom-light: #6671a5;
$custom-dark: #000000;

JSON

{
  "hex": "#153d7f",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 127
  },
  "hsl": {
    "h": 217.358,
    "s": 71.622,
    "l": 29.02
  },
  "oklch": {
    "l": 0.37313,
    "c": 0.12058,
    "h": 260
  },
  "luminance": 0.05029
}

Semantic roles & 50–950 ramp

primary

#153D7F

secondary

#B4873C

accent

#AA39EE

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #153D7F

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

Preview Lab → · Contrast checker → · Palette generator →