#1B2674#1B2674

#1B2674 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.6% C 0.133 H 270.4°. Best body text is #FFFFFF at 13.32:1 contrast (WCAG AA passes).

Color values

HEX	#1B2674
RGB	rgb(27, 38, 116)
HSL	hsl(233, 62%, 28%)
HSV	hsv(233, 77%, 45%)
CMYK	cmyk(76.7%, 67.2%, 0%, 54.5%)
CIE-LAB	lab(19.56, 24.86, -46.07)
CIE-LCH	lch(19.56, 52.35, 298.35°)
OKLab	oklab(31.64% 0.0009 -0.1332)
OKLCH	oklch(31.64% 0.133 270.4)
XYZ	xyz(4.2964, 2.8797, 16.8490)
Luminance	0.0288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2674 #74691B

analogous

#1B5274 #1B2674 #3C1B74

triadic

#1B2674 #741B26 #26741B

tetradic

#1B2674 #741B52 #74691B #1B743C

square

#1B2674 #741B52 #74691B #1B743C

split-complementary

#1B2674 #743C1B #52741B

monochromatic

#060819 #0F1642 #1B2674 #2736A6 #394BD1

Accessibility & contrast

On white

13.32

#1B2674 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1B2674 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2674

13.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2674	#FFFFFF	#000000	##FFFFFF
##1B2674	1.00	13.32	1.58	13.32
#FFFFFF	13.32	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003476

Deuteranopia (green-blind)

#002B73

Tritanopia (blue-blind)

#003A49

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1b2674;
/* rgb */ color: rgb(27, 38, 116);
/* oklch */ color: oklch(31.6% 0.133 270.4);

Tailwind

colors: {
  custom: {
    50: '#66609d',
    500: '#1b2674',
    950: '#000000',
  },
}

SCSS

$custom: #1b2674;
$custom-light: #66609d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2674",
  "rgb": {
    "r": 27,
    "g": 38,
    "b": 116
  },
  "hsl": {
    "h": 232.584,
    "s": 62.238,
    "l": 28.039
  },
  "oklch": {
    "l": 0.31642,
    "c": 0.13318,
    "h": 270.4
  },
  "luminance": 0.0288
}

Semantic roles & 50–950 ramp

primary

#1B2674

secondary

#A99C42

accent

#D142E5

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07050E

muted

#7A797E

Preview Lab

Preview with #1B2674

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

Preview Lab → · Contrast checker → · Palette generator →