#1B2679#1B2679

#1B2679 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.1% C 0.140 H 270.2°. Best body text is #FFFFFF at 13.13:1 contrast (WCAG AA passes).

Color values

HEX	#1B2679
RGB	rgb(27, 38, 121)
HSL	hsl(233, 64%, 29%)
HSV	hsv(233, 78%, 47%)
CMYK	cmyk(77.7%, 68.6%, 0%, 52.5%)
CIE-LAB	lab(20.04, 26.80, -48.48)
CIE-LCH	lch(20.04, 55.39, 298.93°)
OKLab	oklab(32.15% 0.0006 -0.1402)
OKLCH	oklch(32.15% 0.14 270.2)
XYZ	xyz(4.5951, 2.9992, 18.4222)
Luminance	0.0300 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2679 #796E1B

analogous

#1B5579 #1B2679 #3F1B79

triadic

#1B2679 #791B26 #26791B

tetradic

#1B2679 #791B55 #796E1B #1B793F

square

#1B2679 #791B55 #796E1B #1B793F

split-complementary

#1B2679 #793F1B #55791B

monochromatic

#060819 #101647 #1B2679 #2636AB #3B4DD3

Accessibility & contrast

On white

13.13

#1B2679 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#1B2679 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2679

13.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2679	#FFFFFF	#000000	##FFFFFF
##1B2679	1.00	13.13	1.60	13.13
#FFFFFF	13.13	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357C

Deuteranopia (green-blind)

#002C77

Tritanopia (blue-blind)

#003C4C

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1b2679;
/* rgb */ color: rgb(27, 38, 121);
/* oklch */ color: oklch(32.1% 0.140 270.2);

Tailwind

colors: {
  custom: {
    50: '#6860a1',
    500: '#1b2679',
    950: '#000000',
  },
}

SCSS

$custom: #1b2679;
$custom-light: #6860a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2679",
  "rgb": {
    "r": 27,
    "g": 38,
    "b": 121
  },
  "hsl": {
    "h": 232.979,
    "s": 63.514,
    "l": 29.02
  },
  "oklch": {
    "l": 0.32145,
    "c": 0.14022,
    "h": 270.2
  },
  "luminance": 0.03
}

Semantic roles & 50–950 ramp

primary

#1B2679

secondary

#ADA143

accent

#D341E7

background

#F6F5FA

surface

#EBE9F3

border

#C6C5CD

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1B2679

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

Preview Lab → · Contrast checker → · Palette generator →