#1B3694#1B3694

#1B3694 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.9% C 0.158 H 266.3°. Best body text is #FFFFFF at 10.49:1 contrast (WCAG AA passes).

Color values

HEX	#1B3694
RGB	rgb(27, 54, 148)
HSL	hsl(227, 69%, 34%)
HSV	hsv(227, 82%, 58%)
CMYK	cmyk(81.8%, 63.5%, 0%, 42%)
CIE-LAB	lab(26.76, 26.41, -54.37)
CIE-LCH	lch(26.76, 60.44, 295.91°)
OKLab	oklab(37.87% -0.0103 -0.1573)
OKLCH	oklch(37.87% 0.158 266.3)
XYZ	xyz(7.1146, 5.0086, 28.6030)
Luminance	0.0501 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3694 #94791B

analogous

#1B7394 #1B3694 #3D1B94

triadic

#1B3694 #941B36 #36941B

tetradic

#1B3694 #941B73 #94791B #1B943D

square

#1B3694 #941B73 #94791B #1B943D

split-complementary

#1B3694 #943D1B #73941B

monochromatic

#08102C #122360 #1B3694 #2449C8 #4B6CDE

Accessibility & contrast

On white

10.49

#1B3694 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#1B3694 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3694

10.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3694	#FFFFFF	#000000	##FFFFFF
##1B3694	1.00	10.49	2.00	10.49
#FFFFFF	10.49	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004597

Deuteranopia (green-blind)

#003A92

Tritanopia (blue-blind)

#004F5F

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1b3694;
/* rgb */ color: rgb(27, 54, 148);
/* oklch */ color: oklch(37.9% 0.158 266.3);

Tailwind

colors: {
  custom: {
    50: '#6d6cb4',
    500: '#1b3694',
    950: '#000000',
  },
}

SCSS

$custom: #1b3694;
$custom-light: #6d6cb4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3694",
  "rgb": {
    "r": 27,
    "g": 54,
    "b": 148
  },
  "hsl": {
    "h": 226.612,
    "s": 69.143,
    "l": 34.314
  },
  "oklch": {
    "l": 0.37869,
    "c": 0.15764,
    "h": 266.3
  },
  "luminance": 0.05009
}

Semantic roles & 50–950 ramp

primary

#1B3694

secondary

#C0A64B

accent

#C53CEC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1B3694

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

Preview Lab → · Contrast checker → · Palette generator →