#153D9E#153D9E

#153D9E is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.0% C 0.164 H 263.6°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#153D9E
RGB	rgb(21, 61, 158)
HSL	hsl(222, 77%, 35%)
HSV	hsv(222, 87%, 62%)
CMYK	cmyk(86.7%, 61.4%, 0%, 38%)
CIE-LAB	lab(29.32, 25.10, -56.29)
CIE-LCH	lch(29.32, 61.63, 294.04°)
OKLab	oklab(39.99% -0.0183 -0.1629)
OKLCH	oklch(39.99% 0.164 263.6)
XYZ	xyz(8.1474, 5.9645, 33.0630)
Luminance	0.0597 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153D9E #9E7615

analogous

#15819E #153D9E #32159E

triadic

#153D9E #9E153D #3D9E15

tetradic

#153D9E #9E1581 #9E7615 #159E32

square

#153D9E #9E1581 #9E7615 #159E32

split-complementary

#153D9E #9E3215 #819E15

monochromatic

#071332 #0E2868 #153D9E #1C52D4 #4775E7

Accessibility & contrast

On white

9.58

#153D9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#153D9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D9E

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153D9E	#FFFFFF	#000000	##FFFFFF
##153D9E	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA1

Deuteranopia (green-blind)

#003F9C

Tritanopia (blue-blind)

#005667

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #153d9e;
/* rgb */ color: rgb(21, 61, 158);
/* oklch */ color: oklch(40.0% 0.164 263.6);

Tailwind

colors: {
  custom: {
    50: '#6e72bc',
    500: '#153d9e',
    950: '#000000',
  },
}

SCSS

$custom: #153d9e;
$custom-light: #6e72bc;
$custom-dark: #000000;

JSON

{
  "hex": "#153d9e",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 158
  },
  "hsl": {
    "h": 222.482,
    "s": 76.536,
    "l": 35.098
  },
  "oklch": {
    "l": 0.39994,
    "c": 0.16394,
    "h": 263.6
  },
  "luminance": 0.05966
}

Semantic roles & 50–950 ramp

primary

#153D9E

secondary

#C7A247

accent

#BC35F3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #153D9E

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

Preview Lab → · Contrast checker → · Palette generator →