#1B3695#1B3695

#1B3695 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.0% C 0.159 H 266.3°. Best body text is #FFFFFF at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#1B3695
RGB	rgb(27, 54, 149)
HSL	hsl(227, 69%, 35%)
HSV	hsv(227, 82%, 58%)
CMYK	cmyk(81.9%, 63.8%, 0%, 41.6%)
CIE-LAB	lab(26.85, 26.81, -54.83)
CIE-LCH	lch(26.85, 61.03, 296.05°)
OKLab	oklab(37.96% -0.0103 -0.1587)
OKLCH	oklch(37.96% 0.159 266.3)
XYZ	xyz(7.1941, 5.0404, 29.0217)
Luminance	0.0504 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3695 #957A1B

analogous

#1B7395 #1B3695 #3D1B95

triadic

#1B3695 #951B36 #36951B

tetradic

#1B3695 #951B73 #957A1B #1B953D

square

#1B3695 #951B73 #957A1B #1B953D

split-complementary

#1B3695 #953D1B #73951B

monochromatic

#08102D #122361 #1B3695 #2449C9 #4C6CDF

Accessibility & contrast

On white

10.46

#1B3695 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#1B3695 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3695

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3695	#FFFFFF	#000000	##FFFFFF
##1B3695	1.00	10.46	2.01	10.46
#FFFFFF	10.46	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004598

Deuteranopia (green-blind)

#003A93

Tritanopia (blue-blind)

#004F60

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1b3695;
/* rgb */ color: rgb(27, 54, 149);
/* oklch */ color: oklch(38.0% 0.159 266.3);

Tailwind

colors: {
  custom: {
    50: '#6e6cb5',
    500: '#1b3695',
    950: '#000000',
  },
}

SCSS

$custom: #1b3695;
$custom-light: #6e6cb5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3695",
  "rgb": {
    "r": 27,
    "g": 54,
    "b": 149
  },
  "hsl": {
    "h": 226.721,
    "s": 69.318,
    "l": 34.51
  },
  "oklch": {
    "l": 0.37964,
    "c": 0.159,
    "h": 266.3
  },
  "luminance": 0.05041
}

Semantic roles & 50–950 ramp

primary

#1B3695

secondary

#C1A74B

accent

#C53CEC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #1B3695

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

Preview Lab → · Contrast checker → · Palette generator →