#153F9E#153F9E

#153F9E is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.4% C 0.161 H 263.1°. Best body text is #FFFFFF at 9.39:1 contrast (WCAG AA passes).

Color values

HEX	#153F9E
RGB	rgb(21, 63, 158)
HSL	hsl(222, 77%, 35%)
HSV	hsv(222, 87%, 62%)
CMYK	cmyk(86.7%, 60.1%, 0%, 38%)
CIE-LAB	lab(29.87, 23.73, -55.40)
CIE-LCH	lch(29.87, 60.27, 293.19°)
OKLab	oklab(40.4% -0.0194 -0.1603)
OKLCH	oklch(40.4% 0.161 263.1)
XYZ	xyz(8.2561, 6.1820, 33.0992)
Luminance	0.0618 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153F9E #9E7415

analogous

#15839E #153F9E #30159E

triadic

#153F9E #9E153F #3F9E15

tetradic

#153F9E #9E1583 #9E7415 #159E30

square

#153F9E #9E1583 #9E7415 #159E30

split-complementary

#153F9E #9E3015 #839E15

monochromatic

#071432 #0E2968 #153F9E #1C55D4 #4778E7

Accessibility & contrast

On white

9.39

#153F9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#153F9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153F9E

9.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153F9E	#FFFFFF	#000000	##FFFFFF
##153F9E	1.00	9.39	2.24	9.39
#FFFFFF	9.39	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA1

Deuteranopia (green-blind)

#00409C

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #153f9e;
/* rgb */ color: rgb(21, 63, 158);
/* oklch */ color: oklch(40.4% 0.161 263.1);

Tailwind

colors: {
  custom: {
    50: '#6e73bb',
    500: '#153f9e',
    950: '#000000',
  },
}

SCSS

$custom: #153f9e;
$custom-light: #6e73bb;
$custom-dark: #000000;

JSON

{
  "hex": "#153f9e",
  "rgb": {
    "r": 21,
    "g": 63,
    "b": 158
  },
  "hsl": {
    "h": 221.606,
    "s": 76.536,
    "l": 35.098
  },
  "oklch": {
    "l": 0.40402,
    "c": 0.16145,
    "h": 263.1
  },
  "luminance": 0.06183
}

Semantic roles & 50–950 ramp

primary

#153F9E

secondary

#C7A047

accent

#B935F3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #153F9E

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

Preview Lab → · Contrast checker → · Palette generator →