#1B2C7D#1B2C7D

#1B2C7D is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.7% C 0.138 H 268.5°. Best body text is #FFFFFF at 12.33:1 contrast (WCAG AA passes).

Color values

HEX	#1B2C7D
RGB	rgb(27, 44, 125)
HSL	hsl(230, 64%, 30%)
HSV	hsv(230, 78%, 49%)
CMYK	cmyk(78.4%, 64.8%, 0%, 51%)
CIE-LAB	lab(22.00, 24.23, -47.82)
CIE-LCH	lch(22.00, 53.61, 296.87°)
OKLab	oklab(33.7% -0.0036 -0.1382)
OKLCH	oklch(33.7% 0.138 268.5)
XYZ	xyz(5.0531, 3.5145, 19.8101)
Luminance	0.0352 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2C7D #7D6C1B

analogous

#1B5D7D #1B2C7D #3B1B7D

triadic

#1B2C7D #7D1B2C #2C7D1B

tetradic

#1B2C7D #7D1B5D #7D6C1B #1B7D3B

square

#1B2C7D #7D1B5D #7D6C1B #1B7D3B

split-complementary

#1B2C7D #7D3B1B #5D7D1B

monochromatic

#050919 #101A4B #1B2C7D #263EAF #3D58D5

Accessibility & contrast

On white

12.33

#1B2C7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1B2C7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2C7D

12.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2C7D	#FFFFFF	#000000	##FFFFFF
##1B2C7D	1.00	12.33	1.70	12.33
#FFFFFF	12.33	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003980

Deuteranopia (green-blind)

#00307B

Tritanopia (blue-blind)

#004150

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1b2c7d;
/* rgb */ color: rgb(27, 44, 125);
/* oklch */ color: oklch(33.7% 0.138 268.5);

Tailwind

colors: {
  custom: {
    50: '#6865a3',
    500: '#1b2c7d',
    950: '#000000',
  },
}

SCSS

$custom: #1b2c7d;
$custom-light: #6865a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2c7d",
  "rgb": {
    "r": 27,
    "g": 44,
    "b": 125
  },
  "hsl": {
    "h": 229.592,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.33699,
    "c": 0.13828,
    "h": 268.5
  },
  "luminance": 0.03515
}

Semantic roles & 50–950 ramp

primary

#1B2C7D

secondary

#B19E43

accent

#CA40E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #1B2C7D

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

Preview Lab → · Contrast checker → · Palette generator →