#203FB1#203FB1

#203FB1 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.5% C 0.184 H 266.3°. Best body text is #FFFFFF at 8.72:1 contrast (WCAG AA passes).

Color values

HEX	#203FB1
RGB	rgb(32, 63, 177)
HSL	hsl(227, 69%, 41%)
HSV	hsv(227, 82%, 69%)
CMYK	cmyk(81.9%, 64.4%, 0%, 30.6%)
CIE-LAB	lab(31.89, 32.02, -63.49)
CIE-LCH	lch(31.89, 71.10, 296.76°)
OKLab	oklab(42.52% -0.0118 -0.1838)
OKLCH	oklch(42.52% 0.184 266.3)
XYZ	xyz(10.3062, 7.0352, 42.4012)
Luminance	0.0704 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#203FB1 #B19220

analogous

#2087B1 #203FB1 #4920B1

triadic

#203FB1 #B1203F #3FB120

tetradic

#203FB1 #B12087 #B19220 #20B149

square

#203FB1 #B12087 #B19220 #20B149

split-complementary

#203FB1 #B14920 #87B120

monochromatic

#0D1A49 #172D7D #203FB1 #3457DA #6882E4

Accessibility & contrast

On white

8.72

#203FB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#203FB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #203FB1

8.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##203FB1	#FFFFFF	#000000	##FFFFFF
##203FB1	1.00	8.72	2.41	8.72
#FFFFFF	8.72	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B5

Deuteranopia (green-blind)

#0044AF

Tritanopia (blue-blind)

#005D72

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #203fb1;
/* rgb */ color: rgb(32, 63, 177);
/* oklch */ color: oklch(42.5% 0.184 266.3);

Tailwind

colors: {
  custom: {
    50: '#7673c9',
    500: '#203fb1',
    950: '#000000',
  },
}

SCSS

$custom: #203fb1;
$custom-light: #7673c9;
$custom-dark: #000000;

JSON

{
  "hex": "#203fb1",
  "rgb": {
    "r": 32,
    "g": 63,
    "b": 177
  },
  "hsl": {
    "h": 227.172,
    "s": 69.378,
    "l": 40.98
  },
  "oklch": {
    "l": 0.42517,
    "c": 0.1842,
    "h": 266.3
  },
  "luminance": 0.07036
}

Semantic roles & 50–950 ramp

primary

#203FB1

secondary

#C9B364

accent

#C63CEC

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #203FB1

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

Preview Lab → · Contrast checker → · Palette generator →