#203B9E#203B9E

#203B9E is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.0% C 0.164 H 266.8°. Best body text is #FFFFFF at 9.63:1 contrast (WCAG AA passes).

Color values

HEX	#203B9E
RGB	rgb(32, 59, 158)
HSL	hsl(227, 66%, 37%)
HSV	hsv(227, 80%, 62%)
CMYK	cmyk(79.7%, 62.7%, 0%, 38%)
CIE-LAB	lab(29.17, 27.41, -56.53)
CIE-LCH	lch(29.17, 62.82, 295.87°)
OKLab	oklab(39.98% -0.0092 -0.1635)
OKLCH	oklch(39.98% 0.164 266.8)
XYZ	xyz(8.3290, 5.9027, 33.0415)
Luminance	0.0590 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#203B9E #9E8320

analogous

#207A9E #203B9E #44209E

triadic

#203B9E #9E203B #3B9E20

tetradic

#203B9E #9E207A #9E8320 #209E44

square

#203B9E #9E207A #9E8320 #209E44

split-complementary

#203B9E #9E4420 #7A9E20

monochromatic

#0B1538 #16286B #203B9E #2A4ED1 #5B77DE

Accessibility & contrast

On white

9.63

#203B9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#203B9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #203B9E

9.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##203B9E	#FFFFFF	#000000	##FFFFFF
##203B9E	1.00	9.63	2.18	9.63
#FFFFFF	9.63	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA1

Deuteranopia (green-blind)

#003F9C

Tritanopia (blue-blind)

#005566

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #203b9e;
/* rgb */ color: rgb(32, 59, 158);
/* oklch */ color: oklch(40.0% 0.164 266.8);

Tailwind

colors: {
  custom: {
    50: '#7170bc',
    500: '#203b9e',
    950: '#000000',
  },
}

SCSS

$custom: #203b9e;
$custom-light: #7170bc;
$custom-dark: #000000;

JSON

{
  "hex": "#203b9e",
  "rgb": {
    "r": 32,
    "g": 59,
    "b": 158
  },
  "hsl": {
    "h": 227.143,
    "s": 66.316,
    "l": 37.255
  },
  "oklch": {
    "l": 0.39983,
    "c": 0.16375,
    "h": 266.8
  },
  "luminance": 0.05904
}

Semantic roles & 50–950 ramp

primary

#203B9E

secondary

#C2AB58

accent

#C53FE9

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #203B9E

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

Preview Lab → · Contrast checker → · Palette generator →