#1B3894#1B3894

#1B3894 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.3% C 0.155 H 265.8°. Best body text is #FFFFFF at 10.30:1 contrast (WCAG AA passes).

Color values

HEX	#1B3894
RGB	rgb(27, 56, 148)
HSL	hsl(226, 69%, 34%)
HSV	hsv(226, 82%, 58%)
CMYK	cmyk(81.8%, 62.2%, 0%, 42%)
CIE-LAB	lab(27.29, 25.05, -53.49)
CIE-LCH	lch(27.29, 59.07, 295.09°)
OKLab	oklab(38.27% -0.0115 -0.1547)
OKLCH	oklch(38.27% 0.155 265.8)
XYZ	xyz(7.2096, 5.1986, 28.6347)
Luminance	0.0520 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3894 #94771B

analogous

#1B7594 #1B3894 #3B1B94

triadic

#1B3894 #941B38 #38941B

tetradic

#1B3894 #941B75 #94771B #1B943B

square

#1B3894 #941B75 #94771B #1B943B

split-complementary

#1B3894 #943B1B #75941B

monochromatic

#08112C #122460 #1B3894 #244CC8 #4B6EDE

Accessibility & contrast

On white

10.30

#1B3894 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#1B3894 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3894

10.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3894	#FFFFFF	#000000	##FFFFFF
##1B3894	1.00	10.30	2.04	10.30
#FFFFFF	10.30	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004697

Deuteranopia (green-blind)

#003B92

Tritanopia (blue-blind)

#005060

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1b3894;
/* rgb */ color: rgb(27, 56, 148);
/* oklch */ color: oklch(38.3% 0.155 265.8);

Tailwind

colors: {
  custom: {
    50: '#6d6eb4',
    500: '#1b3894',
    950: '#000000',
  },
}

SCSS

$custom: #1b3894;
$custom-light: #6d6eb4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3894",
  "rgb": {
    "r": 27,
    "g": 56,
    "b": 148
  },
  "hsl": {
    "h": 225.62,
    "s": 69.143,
    "l": 34.314
  },
  "oklch": {
    "l": 0.38266,
    "c": 0.15515,
    "h": 265.8
  },
  "luminance": 0.05199
}

Semantic roles & 50–950 ramp

primary

#1B3894

secondary

#C0A44B

accent

#C23CEC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1B3894

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

Preview Lab → · Contrast checker → · Palette generator →