#1B335E#1B335E

#1B335E is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.6% C 0.082 H 261.1°. Best body text is #FFFFFF at 12.49:1 contrast (WCAG AA passes).

Color values

HEX	#1B335E
RGB	rgb(27, 51, 94)
HSL	hsl(219, 55%, 24%)
HSV	hsv(219, 71%, 37%)
CMYK	cmyk(71.3%, 45.7%, 0%, 63.1%)
CIE-LAB	lab(21.61, 6.66, -28.45)
CIE-LCH	lch(21.61, 29.22, 283.17°)
OKLab	oklab(32.63% -0.0127 -0.0812)
OKLCH	oklch(32.63% 0.082 261.1)
XYZ	xyz(3.6555, 3.4085, 11.0528)
Luminance	0.0341 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B335E #5E461B

analogous

#1B545E #1B335E #241B5E

triadic

#1B335E #5E1B33 #335E1B

tetradic

#1B335E #5E1B54 #5E461B #1B5E24

square

#1B335E #5E1B54 #5E461B #1B5E24

split-complementary

#1B335E #5E241B #545E1B

monochromatic

#070D18 #0D192E #1B335E #294D8E #3667BD

Accessibility & contrast

On white

12.49

#1B335E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1B335E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B335E

12.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B335E	#FFFFFF	#000000	##FFFFFF
##1B335E	1.00	12.49	1.68	12.49
#FFFFFF	12.49	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F3760

Deuteranopia (green-blind)

#14315D

Tritanopia (blue-blind)

#003D43

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1b335e;
/* rgb */ color: rgb(27, 51, 94);
/* oklch */ color: oklch(32.6% 0.082 261.1);

Tailwind

colors: {
  custom: {
    50: '#606a8c',
    500: '#1b335e',
    950: '#000000',
  },
}

SCSS

$custom: #1b335e;
$custom-light: #606a8c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b335e",
  "rgb": {
    "r": 27,
    "g": 51,
    "b": 94
  },
  "hsl": {
    "h": 218.507,
    "s": 55.372,
    "l": 23.725
  },
  "oklch": {
    "l": 0.32633,
    "c": 0.08219,
    "h": 261.1
  },
  "luminance": 0.03409
}

Semantic roles & 50–950 ramp

primary

#1B335E

secondary

#947641

accent

#A949DF

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #1B335E

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

Preview Lab → · Contrast checker → · Palette generator →