#203F9F#203F9F

#203F9F is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.9% C 0.160 H 265.8°. Best body text is #FFFFFF at 9.24:1 contrast (WCAG AA passes).

Color values

HEX	#203F9F
RGB	rgb(32, 63, 159)
HSL	hsl(225, 66%, 37%)
HSV	hsv(225, 80%, 62%)
CMYK	cmyk(79.9%, 60.4%, 0%, 37.6%)
CIE-LAB	lab(30.31, 25.09, -55.26)
CIE-LCH	lch(30.31, 60.69, 294.42°)
OKLab	oklab(40.86% -0.0118 -0.1597)
OKLCH	oklch(40.86% 0.16 265.8)
XYZ	xyz(8.6290, 6.3643, 33.5678)
Luminance	0.0636 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#203F9F #9F8020

analogous

#207F9F #203F9F #40209F

triadic

#203F9F #9F203F #3F9F20

tetradic

#203F9F #9F207F #9F8020 #209F40

square

#203F9F #9F207F #9F8020 #209F40

split-complementary

#203F9F #9F4020 #7F9F20

monochromatic

#0B1739 #162B6C #203F9F #2A53D2 #5B7BDE

Accessibility & contrast

On white

9.24

#203F9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#203F9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #203F9F

9.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##203F9F	#FFFFFF	#000000	##FFFFFF
##203F9F	1.00	9.24	2.27	9.24
#FFFFFF	9.24	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA2

Deuteranopia (green-blind)

#00429D

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #203f9f;
/* rgb */ color: rgb(32, 63, 159);
/* oklch */ color: oklch(40.9% 0.160 265.8);

Tailwind

colors: {
  custom: {
    50: '#7173bc',
    500: '#203f9f',
    950: '#000000',
  },
}

SCSS

$custom: #203f9f;
$custom-light: #7173bc;
$custom-dark: #000000;

JSON

{
  "hex": "#203f9f",
  "rgb": {
    "r": 32,
    "g": 63,
    "b": 159
  },
  "hsl": {
    "h": 225.354,
    "s": 66.492,
    "l": 37.451
  },
  "oklch": {
    "l": 0.40864,
    "c": 0.16014,
    "h": 265.8
  },
  "luminance": 0.06365
}

Semantic roles & 50–950 ramp

primary

#203F9F

secondary

#C2A859

accent

#C03EE9

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #203F9F

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

Preview Lab → · Contrast checker → · Palette generator →