#203A9B#203A9B

#203A9B is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.5% C 0.161 H 266.9°. Best body text is #FFFFFF at 9.81:1 contrast (WCAG AA passes).

Color values

HEX	#203A9B
RGB	rgb(32, 58, 155)
HSL	hsl(227, 66%, 37%)
HSV	hsv(227, 79%, 61%)
CMYK	cmyk(79.4%, 62.6%, 0%, 39.2%)
CIE-LAB	lab(28.64, 26.92, -55.56)
CIE-LCH	lch(28.64, 61.74, 295.85°)
OKLab	oklab(39.51% -0.0086 -0.1607)
OKLCH	oklch(39.51% 0.161 266.9)
XYZ	xyz(8.0230, 5.6988, 31.6811)
Luminance	0.0570 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#203A9B #9B8120

analogous

#20789B #203A9B #44209B

triadic

#203A9B #9B203A #3A9B20

tetradic

#203A9B #9B2078 #9B8120 #209B44

square

#203A9B #9B2078 #9B8120 #209B44

split-complementary

#203A9B #9B4420 #789B20

monochromatic

#0B1436 #162768 #203A9B #2A4DCE #5975DD

Accessibility & contrast

On white

9.81

#203A9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#203A9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #203A9B

9.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##203A9B	#FFFFFF	#000000	##FFFFFF
##203A9B	1.00	9.81	2.14	9.81
#FFFFFF	9.81	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00499E

Deuteranopia (green-blind)

#003E99

Tritanopia (blue-blind)

#005365

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #203a9b;
/* rgb */ color: rgb(32, 58, 155);
/* oklch */ color: oklch(39.5% 0.161 266.9);

Tailwind

colors: {
  custom: {
    50: '#706fb9',
    500: '#203a9b',
    950: '#000000',
  },
}

SCSS

$custom: #203a9b;
$custom-light: #706fb9;
$custom-dark: #000000;

JSON

{
  "hex": "#203a9b",
  "rgb": {
    "r": 32,
    "g": 58,
    "b": 155
  },
  "hsl": {
    "h": 227.317,
    "s": 65.775,
    "l": 36.667
  },
  "oklch": {
    "l": 0.39512,
    "c": 0.1609,
    "h": 266.9
  },
  "luminance": 0.057
}

Semantic roles & 50–950 ramp

primary

#203A9B

secondary

#C1AA56

accent

#C53FE9

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #203A9B

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

Preview Lab → · Contrast checker → · Palette generator →