#1B2E63#1B2E63

#1B2E63 is a dark, moderate blue. Relative luminance 0.031; OKLCH L 31.8% C 0.097 H 266.2°. Best body text is #FFFFFF at 12.98:1 contrast (WCAG AA passes).

Color values

HEX	#1B2E63
RGB	rgb(27, 46, 99)
HSL	hsl(224, 57%, 25%)
HSV	hsv(224, 73%, 39%)
CMYK	cmyk(72.7%, 53.5%, 0%, 61.2%)
CIE-LAB	lab(20.39, 12.30, -33.69)
CIE-LCH	lch(20.39, 35.86, 290.05°)
OKLab	oklab(31.81% -0.0065 -0.0967)
OKLCH	oklch(31.81% 0.097 266.2)
XYZ	xyz(3.6803, 3.0875, 12.2040)
Luminance	0.0309 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2E63 #63501B

analogous

#1B5263 #1B2E63 #2C1B63

triadic

#1B2E63 #631B2E #2E631B

tetradic

#1B2E63 #631B52 #63501B #1B632C

square

#1B2E63 #631B52 #63501B #1B632C

split-complementary

#1B2E63 #632C1B #52631B

monochromatic

#070B18 #0E1833 #1B2E63 #284493 #355BC3

Accessibility & contrast

On white

12.98

#1B2E63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#1B2E63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2E63

12.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2E63	#FFFFFF	#000000	##FFFFFF
##1B2E63	1.00	12.98	1.62	12.98
#FFFFFF	12.98	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F3565

Deuteranopia (green-blind)

#002E62

Tritanopia (blue-blind)

#003A43

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1b2e63;
/* rgb */ color: rgb(27, 46, 99);
/* oklch */ color: oklch(31.8% 0.097 266.2);

Tailwind

colors: {
  custom: {
    50: '#616690',
    500: '#1b2e63',
    950: '#000000',
  },
}

SCSS

$custom: #1b2e63;
$custom-light: #616690;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2e63",
  "rgb": {
    "r": 27,
    "g": 46,
    "b": 99
  },
  "hsl": {
    "h": 224.167,
    "s": 57.143,
    "l": 24.706
  },
  "oklch": {
    "l": 0.31812,
    "c": 0.0969,
    "h": 266.2
  },
  "luminance": 0.03088
}

Semantic roles & 50–950 ramp

primary

#1B2E63

secondary

#988141

accent

#B847E0

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#05050C

muted

#7A7A7D

Preview Lab

Preview with #1B2E63

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

Preview Lab → · Contrast checker → · Palette generator →