#203FA5#203FA5

#203FA5 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.4% C 0.168 H 266.0°. Best body text is #FFFFFF at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#203FA5
RGB	rgb(32, 63, 165)
HSL	hsl(226, 68%, 39%)
HSV	hsv(226, 81%, 65%)
CMYK	cmyk(80.6%, 61.8%, 0%, 35.3%)
CIE-LAB	lab(30.83, 27.43, -58.04)
CIE-LCH	lch(30.83, 64.20, 295.29°)
OKLab	oklab(41.4% -0.0117 -0.1679)
OKLCH	oklch(41.4% 0.168 266)
XYZ	xyz(9.1623, 6.5776, 36.3767)
Luminance	0.0658 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#203FA5 #A58620

analogous

#2081A5 #203FA5 #4320A5

triadic

#203FA5 #A5203F #3FA520

tetradic

#203FA5 #A52081 #A58620 #20A543

square

#203FA5 #A52081 #A58620 #20A543

split-complementary

#203FA5 #A54320 #81A520

monochromatic

#0C183E #162B72 #203FA5 #2C54D6 #5F7DE0

Accessibility & contrast

On white

9.07

#203FA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#203FA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #203FA5

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##203FA5	#FFFFFF	#000000	##FFFFFF
##203FA5	1.00	9.07	2.32	9.07
#FFFFFF	9.07	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA8

Deuteranopia (green-blind)

#0043A3

Tritanopia (blue-blind)

#00596C

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #203fa5;
/* rgb */ color: rgb(32, 63, 165);
/* oklch */ color: oklch(41.4% 0.168 266.0);

Tailwind

colors: {
  custom: {
    50: '#7373c1',
    500: '#203fa5',
    950: '#000000',
  },
}

SCSS

$custom: #203fa5;
$custom-light: #7373c1;
$custom-dark: #000000;

JSON

{
  "hex": "#203fa5",
  "rgb": {
    "r": 32,
    "g": 63,
    "b": 165
  },
  "hsl": {
    "h": 226.015,
    "s": 67.513,
    "l": 38.627
  },
  "oklch": {
    "l": 0.41404,
    "c": 0.16829,
    "h": 266
  },
  "luminance": 0.06579
}

Semantic roles & 50–950 ramp

primary

#203FA5

secondary

#C5AC5C

accent

#C23DEA

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#090812

muted

#7B7B81

Preview Lab

Preview with #203FA5

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

Preview Lab → · Contrast checker → · Palette generator →