#203A8B#203A8B

#203A8B is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.1% C 0.139 H 266.3°. Best body text is #FFFFFF at 10.30:1 contrast (WCAG AA passes).

Color values

HEX	#203A8B
RGB	rgb(32, 58, 139)
HSL	hsl(225, 63%, 34%)
HSV	hsv(225, 77%, 55%)
CMYK	cmyk(77%, 58.3%, 0%, 45.5%)
CIE-LAB	lab(27.29, 20.65, -47.94)
CIE-LCH	lch(27.29, 52.20, 293.30°)
OKLab	oklab(38.08% -0.009 -0.1383)
OKLCH	oklch(38.08% 0.139 266.3)
XYZ	xyz(6.7673, 5.1965, 25.0675)
Luminance	0.0520 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#203A8B #8B7120

analogous

#206F8B #203A8B #3C208B

triadic

#203A8B #8B203A #3A8B20

tetradic

#203A8B #8B206F #8B7120 #208B3C

square

#203A8B #8B206F #8B7120 #208B3C

split-complementary

#203A8B #8B3C20 #6F8B20

monochromatic

#091028 #152559 #203A8B #2B4FBD #4F70D6

Accessibility & contrast

On white

10.30

#203A8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#203A8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #203A8B

10.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##203A8B	#FFFFFF	#000000	##FFFFFF
##203A8B	1.00	10.30	2.04	10.30
#FFFFFF	10.30	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00468E

Deuteranopia (green-blind)

#003C89

Tritanopia (blue-blind)

#004E5C

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #203a8b;
/* rgb */ color: rgb(32, 58, 139);
/* oklch */ color: oklch(38.1% 0.139 266.3);

Tailwind

colors: {
  custom: {
    50: '#6c6fae',
    500: '#203a8b',
    950: '#000000',
  },
}

SCSS

$custom: #203a8b;
$custom-light: #6c6fae;
$custom-dark: #000000;

JSON

{
  "hex": "#203a8b",
  "rgb": {
    "r": 32,
    "g": 58,
    "b": 139
  },
  "hsl": {
    "h": 225.421,
    "s": 62.573,
    "l": 33.529
  },
  "oklch": {
    "l": 0.38081,
    "c": 0.1386,
    "h": 266.3
  },
  "luminance": 0.05197
}

Semantic roles & 50–950 ramp

primary

#203A8B

secondary

#BA9F4D

accent

#BE42E6

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #203A8B

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

Preview Lab → · Contrast checker → · Palette generator →