#153A75#153A75

#153A75 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.8% C 0.110 H 259.5°. Best body text is #FFFFFF at 11.09:1 contrast (WCAG AA passes).

Color values

HEX	#153A75
RGB	rgb(21, 58, 117)
HSL	hsl(217, 70%, 27%)
HSV	hsv(217, 82%, 46%)
CMYK	cmyk(82.1%, 50.4%, 0%, 54.1%)
CIE-LAB	lab(25.17, 10.31, -37.61)
CIE-LCH	lch(25.17, 38.99, 285.33°)
OKLab	oklab(35.82% -0.02 -0.1081)
OKLCH	oklch(35.82% 0.11 259.5)
XYZ	xyz(5.0320, 4.4693, 17.4236)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153A75 #755015

analogous

#156A75 #153A75 #201575

triadic

#153A75 #75153A #3A7515

tetradic

#153A75 #75156A #755015 #157520

square

#153A75 #75156A #755015 #157520

split-complementary

#153A75 #752015 #6A7515

monochromatic

#050D1A #0C2041 #153A75 #1E54A9 #2B6ED9

Accessibility & contrast

On white

11.09

#153A75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#153A75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153A75

11.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153A75	#FFFFFF	#000000	##FFFFFF
##153A75	1.00	11.09	1.89	11.09
#FFFFFF	11.09	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184077

Deuteranopia (green-blind)

#003874

Tritanopia (blue-blind)

#004852

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #153a75;
/* rgb */ color: rgb(21, 58, 117);
/* oklch */ color: oklch(35.8% 0.110 259.5);

Tailwind

colors: {
  custom: {
    50: '#636f9d',
    500: '#153a75',
    950: '#000000',
  },
}

SCSS

$custom: #153a75;
$custom-light: #636f9d;
$custom-dark: #000000;

JSON

{
  "hex": "#153a75",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 117
  },
  "hsl": {
    "h": 216.875,
    "s": 69.565,
    "l": 27.059
  },
  "oklch": {
    "l": 0.35815,
    "c": 0.10992,
    "h": 259.5
  },
  "luminance": 0.0447
}

Semantic roles & 50–950 ramp

primary

#153A75

secondary

#AB803B

accent

#A83BEC

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #153A75

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

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