#203FA1#203FA1

#203FA1 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.0% C 0.163 H 265.9°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#203FA1
RGB	rgb(32, 63, 161)
HSL	hsl(226, 67%, 38%)
HSV	hsv(226, 80%, 63%)
CMYK	cmyk(80.1%, 60.9%, 0%, 36.9%)
CIE-LAB	lab(30.48, 25.87, -56.19)
CIE-LCH	lch(30.48, 61.86, 294.72°)
OKLab	oklab(41.04% -0.0117 -0.1624)
OKLCH	oklch(41.04% 0.163 265.9)
XYZ	xyz(8.8039, 6.4343, 34.4892)
Luminance	0.0644 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#203FA1 #A18220

analogous

#2080A1 #203FA1 #4120A1

triadic

#203FA1 #A1203F #3FA120

tetradic

#203FA1 #A12080 #A18220 #20A141

square

#203FA1 #A12080 #A18220 #20A141

split-complementary

#203FA1 #A14120 #80A120

monochromatic

#0C173B #162B6E #203FA1 #2A53D4 #5D7CDF

Accessibility & contrast

On white

9.18

#203FA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#203FA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #203FA1

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##203FA1	#FFFFFF	#000000	##FFFFFF
##203FA1	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA4

Deuteranopia (green-blind)

#00429F

Tritanopia (blue-blind)

#00586A

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #203fa1;
/* rgb */ color: rgb(32, 63, 161);
/* oklch */ color: oklch(41.0% 0.163 265.9);

Tailwind

colors: {
  custom: {
    50: '#7273be',
    500: '#203fa1',
    950: '#000000',
  },
}

SCSS

$custom: #203fa1;
$custom-light: #7273be;
$custom-dark: #000000;

JSON

{
  "hex": "#203fa1",
  "rgb": {
    "r": 32,
    "g": 63,
    "b": 161
  },
  "hsl": {
    "h": 225.581,
    "s": 66.839,
    "l": 37.843
  },
  "oklch": {
    "l": 0.41043,
    "c": 0.16287,
    "h": 265.9
  },
  "luminance": 0.06435
}

Semantic roles & 50–950 ramp

primary

#203FA1

secondary

#C3AA5A

accent

#C03EEA

background

#F7F6FB

surface

#EDECF7

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #203FA1

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

Preview Lab → · Contrast checker → · Palette generator →