#1B2D7E#1B2D7E

#1B2D7E is a dark, vivid blue. Relative luminance 0.036; OKLCH L 34.0% C 0.138 H 268.2°. Best body text is #FFFFFF at 12.19:1 contrast (WCAG AA passes).

Color values

HEX	#1B2D7E
RGB	rgb(27, 45, 126)
HSL	hsl(229, 65%, 30%)
HSV	hsv(229, 79%, 49%)
CMYK	cmyk(78.6%, 64.3%, 0%, 50.6%)
CIE-LAB	lab(22.36, 23.93, -47.86)
CIE-LCH	lch(22.36, 53.51, 296.56°)
OKLab	oklab(33.99% -0.0043 -0.1383)
OKLCH	oklch(33.99% 0.138 268.2)
XYZ	xyz(5.1550, 3.6156, 20.1608)
Luminance	0.0362 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2D7E #7E6C1B

analogous

#1B5E7E #1B2D7E #3B1B7E

triadic

#1B2D7E #7E1B2D #2D7E1B

tetradic

#1B2D7E #7E1B5E #7E6C1B #1B7E3B

square

#1B2D7E #7E1B5E #7E6C1B #1B7E3B

split-complementary

#1B2D7E #7E3B1B #5E7E1B

monochromatic

#050919 #101B4C #1B2D7E #263FB0 #3E59D6

Accessibility & contrast

On white

12.19

#1B2D7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1B2D7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2D7E

12.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2D7E	#FFFFFF	#000000	##FFFFFF
##1B2D7E	1.00	12.19	1.72	12.19
#FFFFFF	12.19	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A81

Deuteranopia (green-blind)

#00317C

Tritanopia (blue-blind)

#004251

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1b2d7e;
/* rgb */ color: rgb(27, 45, 126);
/* oklch */ color: oklch(34.0% 0.138 268.2);

Tailwind

colors: {
  custom: {
    50: '#6865a4',
    500: '#1b2d7e',
    950: '#000000',
  },
}

SCSS

$custom: #1b2d7e;
$custom-light: #6865a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2d7e",
  "rgb": {
    "r": 27,
    "g": 45,
    "b": 126
  },
  "hsl": {
    "h": 229.091,
    "s": 64.706,
    "l": 30
  },
  "oklch": {
    "l": 0.33994,
    "c": 0.13842,
    "h": 268.2
  },
  "luminance": 0.03616
}

Semantic roles & 50–950 ramp

primary

#1B2D7E

secondary

#B29E43

accent

#C940E8

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #1B2D7E

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

Preview Lab → · Contrast checker → · Palette generator →