#203B63#203B63

#203B63 is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.2% C 0.078 H 258.1°. Best body text is #FFFFFF at 11.25:1 contrast (WCAG AA passes).

Color values

HEX	#203B63
RGB	rgb(32, 59, 99)
HSL	hsl(216, 51%, 26%)
HSV	hsv(216, 68%, 39%)
CMYK	cmyk(67.7%, 40.4%, 0%, 61.2%)
CIE-LAB	lab(24.75, 4.03, -26.70)
CIE-LCH	lch(24.75, 27.00, 278.59°)
OKLab	oklab(35.24% -0.016 -0.0758)
OKLCH	oklch(35.24% 0.078 258.1)
XYZ	xyz(4.4110, 4.3354, 12.4063)
Luminance	0.0434 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#203B63 #634820

analogous

#205C63 #203B63 #262063

triadic

#203B63 #63203B #3B6320

tetradic

#203B63 #63205C #634820 #206326

square

#203B63 #63205C #634820 #206326

split-complementary

#203B63 #632620 #5C6320

monochromatic

#070E17 #111F35 #203B63 #2F5791 #3E72BF

Accessibility & contrast

On white

11.25

#203B63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#203B63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #203B63

11.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##203B63	#FFFFFF	#000000	##FFFFFF
##203B63	1.00	11.25	1.87	11.25
#FFFFFF	11.25	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A3E65

Deuteranopia (green-blind)

#203862

Tritanopia (blue-blind)

#00444A

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #203b63;
/* rgb */ color: rgb(32, 59, 99);
/* oklch */ color: oklch(35.2% 0.078 258.1);

Tailwind

colors: {
  custom: {
    50: '#63708f',
    500: '#203b63',
    950: '#000000',
  },
}

SCSS

$custom: #203b63;
$custom-light: #63708f;
$custom-dark: #000000;

JSON

{
  "hex": "#203b63",
  "rgb": {
    "r": 32,
    "g": 59,
    "b": 99
  },
  "hsl": {
    "h": 215.821,
    "s": 51.145,
    "l": 25.686
  },
  "oklch": {
    "l": 0.35237,
    "c": 0.07752,
    "h": 258.1
  },
  "luminance": 0.04336
}

Semantic roles & 50–950 ramp

primary

#203B63

secondary

#977748

accent

#A24DDB

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #203B63

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

Preview Lab → · Contrast checker → · Palette generator →