#153C79#153C79

#153C79 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.6% C 0.113 H 259.3°. Best body text is #FFFFFF at 10.74:1 contrast (WCAG AA passes).

Color values

HEX	#153C79
RGB	rgb(21, 60, 121)
HSL	hsl(217, 70%, 28%)
HSV	hsv(217, 83%, 47%)
CMYK	cmyk(82.6%, 50.4%, 0%, 52.5%)
CIE-LAB	lab(26.07, 10.57, -38.68)
CIE-LCH	lch(26.07, 40.10, 285.29°)
OKLab	oklab(36.6% -0.021 -0.1112)
OKLCH	oklch(36.6% 0.113 259.3)
XYZ	xyz(5.3750, 4.7710, 18.7231)
Luminance	0.0477 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153C79 #795215

analogous

#156E79 #153C79 #201579

triadic

#153C79 #79153C #3C7915

tetradic

#153C79 #79156E #795215 #157920

square

#153C79 #79156E #795215 #157920

split-complementary

#153C79 #792015 #6E7915

monochromatic

#050D1A #0C2245 #153C79 #1E56AD #2E71DB

Accessibility & contrast

On white

10.74

#153C79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#153C79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153C79

10.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153C79	#FFFFFF	#000000	##FFFFFF
##153C79	1.00	10.74	1.95	10.74
#FFFFFF	10.74	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19437B

Deuteranopia (green-blind)

#003978

Tritanopia (blue-blind)

#004B54

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #153c79;
/* rgb */ color: rgb(21, 60, 121);
/* oklch */ color: oklch(36.6% 0.113 259.3);

Tailwind

colors: {
  custom: {
    50: '#6471a0',
    500: '#153c79',
    950: '#000000',
  },
}

SCSS

$custom: #153c79;
$custom-light: #6471a0;
$custom-dark: #000000;

JSON

{
  "hex": "#153c79",
  "rgb": {
    "r": 21,
    "g": 60,
    "b": 121
  },
  "hsl": {
    "h": 216.6,
    "s": 70.423,
    "l": 27.843
  },
  "oklch": {
    "l": 0.36603,
    "c": 0.11317,
    "h": 259.3
  },
  "luminance": 0.04772
}

Semantic roles & 50–950 ramp

primary

#153C79

secondary

#AF823B

accent

#A83BED

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070F

muted

#7A7A7E

Preview Lab

Preview with #153C79

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

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