#1B2D7C#1B2D7C

#1B2D7C is a dark, vivid blue. Relative luminance 0.036; OKLCH L 33.8% C 0.136 H 268.2°. Best body text is #FFFFFF at 12.26:1 contrast (WCAG AA passes).

Color values

HEX	#1B2D7C
RGB	rgb(27, 45, 124)
HSL	hsl(229, 64%, 30%)
HSV	hsv(229, 78%, 49%)
CMYK	cmyk(78.2%, 63.7%, 0%, 51.4%)
CIE-LAB	lab(22.18, 23.13, -46.89)
CIE-LCH	lch(22.18, 52.29, 296.26°)
OKLab	oklab(33.8% -0.0043 -0.1355)
OKLCH	oklch(33.8% 0.136 268.2)
XYZ	xyz(5.0272, 3.5645, 19.4879)
Luminance	0.0357 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2D7C #7C6A1B

analogous

#1B5E7C #1B2D7C #3A1B7C

triadic

#1B2D7C #7C1B2D #2D7C1B

tetradic

#1B2D7C #7C1B5E #7C6A1B #1B7C3A

square

#1B2D7C #7C1B5E #7C6A1B #1B7C3A

split-complementary

#1B2D7C #7C3A1B #5E7C1B

monochromatic

#050919 #101B4A #1B2D7C #263FAE #3D59D5

Accessibility & contrast

On white

12.26

#1B2D7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#1B2D7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2D7C

12.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2D7C	#FFFFFF	#000000	##FFFFFF
##1B2D7C	1.00	12.26	1.71	12.26
#FFFFFF	12.26	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A7F

Deuteranopia (green-blind)

#00317A

Tritanopia (blue-blind)

#004150

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1b2d7c;
/* rgb */ color: rgb(27, 45, 124);
/* oklch */ color: oklch(33.8% 0.136 268.2);

Tailwind

colors: {
  custom: {
    50: '#6865a3',
    500: '#1b2d7c',
    950: '#000000',
  },
}

SCSS

$custom: #1b2d7c;
$custom-light: #6865a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2d7c",
  "rgb": {
    "r": 27,
    "g": 45,
    "b": 124
  },
  "hsl": {
    "h": 228.866,
    "s": 64.238,
    "l": 29.608
  },
  "oklch": {
    "l": 0.33803,
    "c": 0.13558,
    "h": 268.2
  },
  "luminance": 0.03565
}

Semantic roles & 50–950 ramp

primary

#1B2D7C

secondary

#B09C43

accent

#C841E7

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #1B2D7C

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

Preview Lab → · Contrast checker → · Palette generator →