#1B2D7A#1B2D7A

#1B2D7A is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.6% C 0.133 H 268.2°. Best body text is #FFFFFF at 12.33:1 contrast (WCAG AA passes).

Color values

HEX	#1B2D7A
RGB	rgb(27, 45, 122)
HSL	hsl(229, 64%, 29%)
HSV	hsv(229, 78%, 48%)
CMYK	cmyk(77.9%, 63.1%, 0%, 52.2%)
CIE-LAB	lab(22.00, 22.34, -45.91)
CIE-LCH	lch(22.00, 51.06, 295.94°)
OKLab	oklab(33.61% -0.0043 -0.1326)
OKLCH	oklch(33.61% 0.133 268.2)
XYZ	xyz(4.9020, 3.5144, 18.8286)
Luminance	0.0352 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2D7A #7A681B

analogous

#1B5D7A #1B2D7A #391B7A

triadic

#1B2D7A #7A1B2D #2D7A1B

tetradic

#1B2D7A #7A1B5D #7A681B #1B7A39

square

#1B2D7A #7A1B5D #7A681B #1B7A39

split-complementary

#1B2D7A #7A391B #5D7A1B

monochromatic

#060919 #101B48 #1B2D7A #263FAC #3C58D4

Accessibility & contrast

On white

12.33

#1B2D7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1B2D7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2D7A

12.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2D7A	#FFFFFF	#000000	##FFFFFF
##1B2D7A	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)

#00397D

Deuteranopia (green-blind)

#003079

Tritanopia (blue-blind)

#00414F

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1b2d7a;
/* rgb */ color: rgb(27, 45, 122);
/* oklch */ color: oklch(33.6% 0.133 268.2);

Tailwind

colors: {
  custom: {
    50: '#6765a1',
    500: '#1b2d7a',
    950: '#000000',
  },
}

SCSS

$custom: #1b2d7a;
$custom-light: #6765a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2d7a",
  "rgb": {
    "r": 27,
    "g": 45,
    "b": 122
  },
  "hsl": {
    "h": 228.632,
    "s": 63.758,
    "l": 29.216
  },
  "oklch": {
    "l": 0.33614,
    "c": 0.13271,
    "h": 268.2
  },
  "luminance": 0.03515
}

Semantic roles & 50–950 ramp

primary

#1B2D7A

secondary

#AE9A43

accent

#C741E7

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #1B2D7A

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

Preview Lab → · Contrast checker → · Palette generator →