#153F9F#153F9F

#153F9F is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.5% C 0.163 H 263.2°. Best body text is #FFFFFF at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#153F9F
RGB	rgb(21, 63, 159)
HSL	hsl(222, 77%, 35%)
HSV	hsv(222, 87%, 62%)
CMYK	cmyk(86.8%, 60.4%, 0%, 37.6%)
CIE-LAB	lab(29.95, 24.14, -55.86)
CIE-LCH	lch(29.95, 60.85, 293.37°)
OKLab	oklab(40.49% -0.0193 -0.1616)
OKLCH	oklch(40.49% 0.163 263.2)
XYZ	xyz(8.3425, 6.2166, 33.5544)
Luminance	0.0622 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153F9F #9F7515

analogous

#15849F #153F9F #30159F

triadic

#153F9F #9F153F #3F9F15

tetradic

#153F9F #9F1584 #9F7515 #159F30

square

#153F9F #9F1584 #9F7515 #159F30

split-complementary

#153F9F #9F3015 #849F15

monochromatic

#071433 #0E2A69 #153F9F #1C54D5 #4878E7

Accessibility & contrast

On white

9.36

#153F9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#153F9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153F9F

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153F9F	#FFFFFF	#000000	##FFFFFF
##153F9F	1.00	9.36	2.24	9.36
#FFFFFF	9.36	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA2

Deuteranopia (green-blind)

#00409D

Tritanopia (blue-blind)

#005868

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #153f9f;
/* rgb */ color: rgb(21, 63, 159);
/* oklch */ color: oklch(40.5% 0.163 263.2);

Tailwind

colors: {
  custom: {
    50: '#6e73bc',
    500: '#153f9f',
    950: '#000000',
  },
}

SCSS

$custom: #153f9f;
$custom-light: #6e73bc;
$custom-dark: #000000;

JSON

{
  "hex": "#153f9f",
  "rgb": {
    "r": 21,
    "g": 63,
    "b": 159
  },
  "hsl": {
    "h": 221.739,
    "s": 76.667,
    "l": 35.294
  },
  "oklch": {
    "l": 0.40492,
    "c": 0.1628,
    "h": 263.2
  },
  "luminance": 0.06218
}

Semantic roles & 50–950 ramp

primary

#153F9F

secondary

#C8A148

accent

#B935F3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #153F9F

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

Preview Lab → · Contrast checker → · Palette generator →