#1B2C7E#1B2C7E

#1B2C7E is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.8% C 0.140 H 268.5°. Best body text is #FFFFFF at 12.29:1 contrast (WCAG AA passes).

Color values

HEX	#1B2C7E
RGB	rgb(27, 44, 126)
HSL	hsl(230, 65%, 30%)
HSV	hsv(230, 79%, 49%)
CMYK	cmyk(78.6%, 65.1%, 0%, 50.6%)
CIE-LAB	lab(22.09, 24.62, -48.30)
CIE-LCH	lch(22.09, 54.21, 297.01°)
OKLab	oklab(33.8% -0.0036 -0.1396)
OKLCH	oklch(33.8% 0.14 268.5)
XYZ	xyz(5.1173, 3.5402, 20.1482)
Luminance	0.0354 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2C7E #7E6D1B

analogous

#1B5D7E #1B2C7E #3C1B7E

triadic

#1B2C7E #7E1B2C #2C7E1B

tetradic

#1B2C7E #7E1B5D #7E6D1B #1B7E3C

square

#1B2C7E #7E1B5D #7E6D1B #1B7E3C

split-complementary

#1B2C7E #7E3C1B #5D7E1B

monochromatic

#050919 #101A4C #1B2C7E #263EB0 #3E58D6

Accessibility & contrast

On white

12.29

#1B2C7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#1B2C7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2C7E

12.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2C7E	#FFFFFF	#000000	##FFFFFF
##1B2C7E	1.00	12.29	1.71	12.29
#FFFFFF	12.29	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A81

Deuteranopia (green-blind)

#00307C

Tritanopia (blue-blind)

#004150

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1b2c7e;
/* rgb */ color: rgb(27, 44, 126);
/* oklch */ color: oklch(33.8% 0.140 268.5);

Tailwind

colors: {
  custom: {
    50: '#6865a4',
    500: '#1b2c7e',
    950: '#000000',
  },
}

SCSS

$custom: #1b2c7e;
$custom-light: #6865a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2c7e",
  "rgb": {
    "r": 27,
    "g": 44,
    "b": 126
  },
  "hsl": {
    "h": 229.697,
    "s": 64.706,
    "l": 30
  },
  "oklch": {
    "l": 0.33796,
    "c": 0.1397,
    "h": 268.5
  },
  "luminance": 0.03541
}

Semantic roles & 50–950 ramp

primary

#1B2C7E

secondary

#B29F43

accent

#CB40E8

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #1B2C7E

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

Preview Lab → · Contrast checker → · Palette generator →