#203F5B#203F5B

#203F5B is a dark, moderate cyan. Relative luminance 0.046; OKLCH L 35.8% C 0.061 H 247.6°. Best body text is #FFFFFF at 10.92:1 contrast (WCAG AA passes).

Color values

HEX	#203F5B
RGB	rgb(32, 63, 91)
HSL	hsl(208, 48%, 24%)
HSV	hsv(208, 65%, 36%)
CMYK	cmyk(64.8%, 30.8%, 0%, 64.3%)
CIE-LAB	lab(25.61, -1.75, -20.15)
CIE-LCH	lch(25.61, 20.22, 265.02°)
OKLab	oklab(35.77% -0.0233 -0.0567)
OKLCH	oklch(35.77% 0.061 247.6)
XYZ	xyz(4.2608, 4.6170, 10.5621)
Luminance	0.0462 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#203F5B #5B3C20

analogous

#205B5A #203F5B #20225B

triadic

#203F5B #5B203F #3F5B20

tetradic

#203F5B #5A205B #5B3C20 #225B20

square

#203F5B #5A205B #5B3C20 #225B20

split-complementary

#203F5B #5B2022 #5B5A20

monochromatic

#081017 #10202E #203F5B #305E88 #407EB6

Accessibility & contrast

On white

10.92

#203F5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#203F5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #203F5B

10.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##203F5B	#FFFFFF	#000000	##FFFFFF
##203F5B	1.00	10.92	1.92	10.92
#FFFFFF	10.92	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#33405C

Deuteranopia (green-blind)

#2B3A5A

Tritanopia (blue-blind)

#004649

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #203f5b;
/* rgb */ color: rgb(32, 63, 91);
/* oklch */ color: oklch(35.8% 0.061 247.6);

Tailwind

colors: {
  custom: {
    50: '#627389',
    500: '#203f5b',
    950: '#000000',
  },
}

SCSS

$custom: #203f5b;
$custom-light: #627389;
$custom-dark: #000000;

JSON

{
  "hex": "#203f5b",
  "rgb": {
    "r": 32,
    "g": 63,
    "b": 91
  },
  "hsl": {
    "h": 208.475,
    "s": 47.967,
    "l": 24.118
  },
  "oklch": {
    "l": 0.35767,
    "c": 0.06132,
    "h": 247.6
  },
  "luminance": 0.04617
}

Semantic roles & 50–950 ramp

primary

#203F5B

secondary

#8F6A47

accent

#9050D8

background

#F6F7F8

surface

#EBEDF0

border

#C6C8CB

text

#05080B

muted

#7A7B7C

Preview Lab

Preview with #203F5B

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

Preview Lab → · Contrast checker → · Palette generator →