#153DA1#153DA1

#153DA1 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.3% C 0.168 H 263.8°. Best body text is #FFFFFF at 9.49:1 contrast (WCAG AA passes).

Color values

HEX	#153DA1
RGB	rgb(21, 61, 161)
HSL	hsl(223, 77%, 36%)
HSV	hsv(223, 87%, 63%)
CMYK	cmyk(87%, 62.1%, 0%, 36.9%)
CIE-LAB	lab(29.59, 26.30, -57.67)
CIE-LCH	lch(29.59, 63.39, 294.51°)
OKLab	oklab(40.27% -0.0182 -0.167)
OKLCH	oklch(40.27% 0.168 263.8)
XYZ	xyz(8.4087, 6.0691, 34.4396)
Luminance	0.0607 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153DA1 #A17915

analogous

#1583A1 #153DA1 #3315A1

triadic

#153DA1 #A1153D #3DA115

tetradic

#153DA1 #A11583 #A17915 #15A133

square

#153DA1 #A11583 #A17915 #15A133

split-complementary

#153DA1 #A13315 #83A115

monochromatic

#071435 #0E286B #153DA1 #1C52D7 #4976E7

Accessibility & contrast

On white

9.49

#153DA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#153DA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153DA1

9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153DA1	#FFFFFF	#000000	##FFFFFF
##153DA1	1.00	9.49	2.21	9.49
#FFFFFF	9.49	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA4

Deuteranopia (green-blind)

#003F9F

Tritanopia (blue-blind)

#005769

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #153da1;
/* rgb */ color: rgb(21, 61, 161);
/* oklch */ color: oklch(40.3% 0.168 263.8);

Tailwind

colors: {
  custom: {
    50: '#6f72be',
    500: '#153da1',
    950: '#000000',
  },
}

SCSS

$custom: #153da1;
$custom-light: #6f72be;
$custom-dark: #000000;

JSON

{
  "hex": "#153da1",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 161
  },
  "hsl": {
    "h": 222.857,
    "s": 76.923,
    "l": 35.686
  },
  "oklch": {
    "l": 0.40272,
    "c": 0.16797,
    "h": 263.8
  },
  "luminance": 0.0607
}

Semantic roles & 50–950 ramp

primary

#153DA1

secondary

#C8A449

accent

#BD34F3

background

#F7F6FB

surface

#EDECF7

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #153DA1

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

Preview Lab → · Contrast checker → · Palette generator →