#153FA1#153FA1

#153FA1 is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.7% C 0.165 H 263.3°. Best body text is #FFFFFF at 9.30:1 contrast (WCAG AA passes).

Color values

HEX	#153FA1
RGB	rgb(21, 63, 161)
HSL	hsl(222, 77%, 36%)
HSV	hsv(222, 87%, 63%)
CMYK	cmyk(87%, 60.9%, 0%, 36.9%)
CIE-LAB	lab(30.12, 24.94, -56.79)
CIE-LCH	lch(30.12, 62.03, 293.71°)
OKLab	oklab(40.67% -0.0192 -0.1644)
OKLCH	oklch(40.67% 0.165 263.3)
XYZ	xyz(8.5175, 6.2866, 34.4758)
Luminance	0.0629 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153FA1 #A17715

analogous

#1585A1 #153FA1 #3115A1

triadic

#153FA1 #A1153F #3FA115

tetradic

#153FA1 #A11585 #A17715 #15A131

square

#153FA1 #A11585 #A17715 #15A131

split-complementary

#153FA1 #A13115 #85A115

monochromatic

#071535 #0E2A6B #153FA1 #1C54D7 #4979E7

Accessibility & contrast

On white

9.30

#153FA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#153FA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153FA1

9.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153FA1	#FFFFFF	#000000	##FFFFFF
##153FA1	1.00	9.30	2.26	9.30
#FFFFFF	9.30	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA4

Deuteranopia (green-blind)

#00419F

Tritanopia (blue-blind)

#00586A

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #153fa1;
/* rgb */ color: rgb(21, 63, 161);
/* oklch */ color: oklch(40.7% 0.165 263.3);

Tailwind

colors: {
  custom: {
    50: '#6f73be',
    500: '#153fa1',
    950: '#000000',
  },
}

SCSS

$custom: #153fa1;
$custom-light: #6f73be;
$custom-dark: #000000;

JSON

{
  "hex": "#153fa1",
  "rgb": {
    "r": 21,
    "g": 63,
    "b": 161
  },
  "hsl": {
    "h": 222,
    "s": 76.923,
    "l": 35.686
  },
  "oklch": {
    "l": 0.40674,
    "c": 0.16549,
    "h": 263.3
  },
  "luminance": 0.06288
}

Semantic roles & 50–950 ramp

primary

#153FA1

secondary

#C8A249

accent

#BA34F3

background

#F7F6FB

surface

#EDECF7

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #153FA1

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

Preview Lab → · Contrast checker → · Palette generator →