#1B2D7D#1B2D7D

#1B2D7D is a dark, vivid blue. Relative luminance 0.036; OKLCH L 33.9% C 0.137 H 268.2°. Best body text is #FFFFFF at 12.22:1 contrast (WCAG AA passes).

Color values

HEX	#1B2D7D
RGB	rgb(27, 45, 125)
HSL	hsl(229, 64%, 30%)
HSV	hsv(229, 78%, 49%)
CMYK	cmyk(78.4%, 64%, 0%, 51%)
CIE-LAB	lab(22.27, 23.53, -47.38)
CIE-LCH	lch(22.27, 52.90, 296.41°)
OKLab	oklab(33.9% -0.0043 -0.1369)
OKLCH	oklch(33.9% 0.137 268.2)
XYZ	xyz(5.0908, 3.5899, 19.8227)
Luminance	0.0359 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2D7D #7D6B1B

analogous

#1B5E7D #1B2D7D #3A1B7D

triadic

#1B2D7D #7D1B2D #2D7D1B

tetradic

#1B2D7D #7D1B5E #7D6B1B #1B7D3A

square

#1B2D7D #7D1B5E #7D6B1B #1B7D3A

split-complementary

#1B2D7D #7D3A1B #5E7D1B

monochromatic

#050919 #101B4B #1B2D7D #263FAF #3D59D5

Accessibility & contrast

On white

12.22

#1B2D7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1B2D7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2D7D

12.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2D7D	#FFFFFF	#000000	##FFFFFF
##1B2D7D	1.00	12.22	1.72	12.22
#FFFFFF	12.22	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A80

Deuteranopia (green-blind)

#00317B

Tritanopia (blue-blind)

#004250

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1b2d7d;
/* rgb */ color: rgb(27, 45, 125);
/* oklch */ color: oklch(33.9% 0.137 268.2);

Tailwind

colors: {
  custom: {
    50: '#6865a3',
    500: '#1b2d7d',
    950: '#000000',
  },
}

SCSS

$custom: #1b2d7d;
$custom-light: #6865a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2d7d",
  "rgb": {
    "r": 27,
    "g": 45,
    "b": 125
  },
  "hsl": {
    "h": 228.98,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.33898,
    "c": 0.137,
    "h": 268.2
  },
  "luminance": 0.0359
}

Semantic roles & 50–950 ramp

primary

#1B2D7D

secondary

#B19D43

accent

#C940E7

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #1B2D7D

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

Preview Lab → · Contrast checker → · Palette generator →