#203CB3#203CB3

#203CB3 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.2% C 0.190 H 266.9°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#203CB3
RGB	rgb(32, 60, 179)
HSL	hsl(229, 70%, 41%)
HSV	hsv(229, 82%, 70%)
CMYK	cmyk(82.1%, 66.5%, 0%, 29.8%)
CIE-LAB	lab(31.33, 34.72, -65.59)
CIE-LCH	lch(31.33, 74.22, 297.90°)
OKLab	oklab(42.16% -0.0104 -0.19)
OKLCH	oklch(42.16% 0.19 266.9)
XYZ	xyz(10.3454, 6.7922, 43.4049)
Luminance	0.0679 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#203CB3 #B39720

analogous

#2086B3 #203CB3 #4D20B3

triadic

#203CB3 #B3203C #3CB320

tetradic

#203CB3 #B32086 #B39720 #20B34D

square

#203CB3 #B32086 #B39720 #20B34D

split-complementary

#203CB3 #B34D20 #86B320

monochromatic

#0D194B #172B7F #203CB3 #3555DB #6981E4

Accessibility & contrast

On white

8.90

#203CB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#203CB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #203CB3

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##203CB3	#FFFFFF	#000000	##FFFFFF
##203CB3	1.00	8.90	2.36	8.90
#FFFFFF	8.90	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B7

Deuteranopia (green-blind)

#0043B1

Tritanopia (blue-blind)

#005C72

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #203cb3;
/* rgb */ color: rgb(32, 60, 179);
/* oklch */ color: oklch(42.2% 0.190 266.9);

Tailwind

colors: {
  custom: {
    50: '#7771cb',
    500: '#203cb3',
    950: '#000000',
  },
}

SCSS

$custom: #203cb3;
$custom-light: #7771cb;
$custom-dark: #000000;

JSON

{
  "hex": "#203cb3",
  "rgb": {
    "r": 32,
    "g": 60,
    "b": 179
  },
  "hsl": {
    "h": 228.571,
    "s": 69.668,
    "l": 41.373
  },
  "oklch": {
    "l": 0.42163,
    "c": 0.19028,
    "h": 266.9
  },
  "luminance": 0.06793
}

Semantic roles & 50–950 ramp

primary

#203CB3

secondary

#CAB765

accent

#CB3BEC

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #203CB3

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

Preview Lab → · Contrast checker → · Palette generator →