#203F9E#203F9E

#203F9E is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.8% C 0.159 H 265.7°. Best body text is #FFFFFF at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#203F9E
RGB	rgb(32, 63, 158)
HSL	hsl(225, 66%, 37%)
HSV	hsv(225, 80%, 62%)
CMYK	cmyk(79.7%, 60.1%, 0%, 38%)
CIE-LAB	lab(30.23, 24.70, -54.79)
CIE-LCH	lch(30.23, 60.10, 294.27°)
OKLab	oklab(40.78% -0.0118 -0.1583)
OKLCH	oklch(40.78% 0.159 265.7)
XYZ	xyz(8.5426, 6.3297, 33.1127)
Luminance	0.0633 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#203F9E #9E7F20

analogous

#207E9E #203F9E #40209E

triadic

#203F9E #9E203F #3F9E20

tetradic

#203F9E #9E207E #9E7F20 #209E40

square

#203F9E #9E207E #9E7F20 #209E40

split-complementary

#203F9E #9E4020 #7E9E20

monochromatic

#0B1638 #162B6B #203F9E #2A53D1 #5B7BDE

Accessibility & contrast

On white

9.27

#203F9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#203F9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #203F9E

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##203F9E	#FFFFFF	#000000	##FFFFFF
##203F9E	1.00	9.27	2.27	9.27
#FFFFFF	9.27	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA1

Deuteranopia (green-blind)

#00429C

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #203f9e;
/* rgb */ color: rgb(32, 63, 158);
/* oklch */ color: oklch(40.8% 0.159 265.7);

Tailwind

colors: {
  custom: {
    50: '#7173bb',
    500: '#203f9e',
    950: '#000000',
  },
}

SCSS

$custom: #203f9e;
$custom-light: #7173bb;
$custom-dark: #000000;

JSON

{
  "hex": "#203f9e",
  "rgb": {
    "r": 32,
    "g": 63,
    "b": 158
  },
  "hsl": {
    "h": 225.238,
    "s": 66.316,
    "l": 37.255
  },
  "oklch": {
    "l": 0.40775,
    "c": 0.15877,
    "h": 265.7
  },
  "luminance": 0.06331
}

Semantic roles & 50–950 ramp

primary

#203F9E

secondary

#C2A858

accent

#BF3FE9

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #203F9E

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

Preview Lab → · Contrast checker → · Palette generator →