#1B328F#1B328F

#1B328F is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.6% C 0.156 H 267.1°. Best body text is #FFFFFF at 11.06:1 contrast (WCAG AA passes).

Color values

HEX	#1B328F
RGB	rgb(27, 50, 143)
HSL	hsl(228, 68%, 33%)
HSV	hsv(228, 81%, 56%)
CMYK	cmyk(81.1%, 65%, 0%, 43.9%)
CIE-LAB	lab(25.25, 27.18, -53.76)
CIE-LCH	lch(25.25, 60.24, 296.82°)
OKLab	oklab(36.61% -0.0078 -0.1556)
OKLCH	oklch(36.61% 0.156 267.1)
XYZ	xyz(6.5488, 4.4966, 26.5041)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B328F #8F781B

analogous

#1B6C8F #1B328F #3E1B8F

triadic

#1B328F #8F1B32 #328F1B

tetradic

#1B328F #8F1B6C #8F781B #1B8F3E

square

#1B328F #8F1B6C #8F781B #1B8F3E

split-complementary

#1B328F #8F3E1B #6C8F1B

monochromatic

#080E28 #11205C #1B328F #2544C2 #4865DC

Accessibility & contrast

On white

11.06

#1B328F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1B328F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B328F

11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B328F	#FFFFFF	#000000	##FFFFFF
##1B328F	1.00	11.06	1.90	11.06
#FFFFFF	11.06	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004192

Deuteranopia (green-blind)

#00368D

Tritanopia (blue-blind)

#004A5B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1b328f;
/* rgb */ color: rgb(27, 50, 143);
/* oklch */ color: oklch(36.6% 0.156 267.1);

Tailwind

colors: {
  custom: {
    50: '#6c69b1',
    500: '#1b328f',
    950: '#000000',
  },
}

SCSS

$custom: #1b328f;
$custom-light: #6c69b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b328f",
  "rgb": {
    "r": 27,
    "g": 50,
    "b": 143
  },
  "hsl": {
    "h": 228.103,
    "s": 68.235,
    "l": 33.333
  },
  "oklch": {
    "l": 0.36612,
    "c": 0.15576,
    "h": 267.1
  },
  "luminance": 0.04497
}

Semantic roles & 50–950 ramp

primary

#1B328F

secondary

#BEA748

accent

#C93DEB

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1B328F

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

Preview Lab → · Contrast checker → · Palette generator →