#1B4190#1B4190

#1B4190 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.8% C 0.138 H 262.6°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#1B4190
RGB	rgb(27, 65, 144)
HSL	hsl(221, 68%, 34%)
HSV	hsv(221, 81%, 56%)
CMYK	cmyk(81.3%, 54.9%, 0%, 43.5%)
CIE-LAB	lab(29.48, 17.23, -47.48)
CIE-LCH	lch(29.48, 50.51, 289.94°)
OKLab	oklab(39.81% -0.0178 -0.1369)
OKLCH	oklch(39.81% 0.138 262.6)
XYZ	xyz(7.3745, 6.0264, 27.1547)
Luminance	0.0603 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4190 #906A1B

analogous

#1B7B90 #1B4190 #2F1B90

triadic

#1B4190 #901B41 #41901B

tetradic

#1B4190 #901B7B #906A1B #1B902F

square

#1B4190 #901B7B #906A1B #1B902F

split-complementary

#1B4190 #902F1B #7B901B

monochromatic

#081229 #112A5C #1B4190 #2558C4 #4979DD

Accessibility & contrast

On white

9.52

#1B4190 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#1B4190 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4190

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4190	#FFFFFF	#000000	##FFFFFF
##1B4190	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#014B93

Deuteranopia (green-blind)

#00408E

Tritanopia (blue-blind)

#005462

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1b4190;
/* rgb */ color: rgb(27, 65, 144);
/* oklch */ color: oklch(39.8% 0.138 262.6);

Tailwind

colors: {
  custom: {
    50: '#6c75b1',
    500: '#1b4190',
    950: '#000000',
  },
}

SCSS

$custom: #1b4190;
$custom-light: #6c75b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4190",
  "rgb": {
    "r": 27,
    "g": 65,
    "b": 144
  },
  "hsl": {
    "h": 220.513,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.39805,
    "c": 0.13806,
    "h": 262.6
  },
  "luminance": 0.06027
}

Semantic roles & 50–950 ramp

primary

#1B4190

secondary

#BF9848

accent

#B33DEB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #1B4190

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

Preview Lab → · Contrast checker → · Palette generator →