#1B4979#1B4979

#1B4979 is a dark, moderate cyan. Relative luminance 0.064; OKLCH L 40.0% C 0.095 H 252.2°. Best body text is #FFFFFF at 9.23:1 contrast (WCAG AA passes).

Color values

HEX	#1B4979
RGB	rgb(27, 73, 121)
HSL	hsl(211, 64%, 29%)
HSV	hsv(211, 78%, 47%)
CMYK	cmyk(77.7%, 39.7%, 0%, 52.5%)
CIE-LAB	lab(30.35, 2.41, -31.83)
CIE-LCH	lch(30.35, 31.92, 274.34°)
OKLab	oklab(39.97% -0.0291 -0.0907)
OKLCH	oklch(39.97% 0.095 252.2)
XYZ	xyz(6.2844, 6.3779, 18.9853)
Luminance	0.0638 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4979 #794B1B

analogous

#1B7879 #1B4979 #1C1B79

triadic

#1B4979 #791B49 #49791B

tetradic

#1B4979 #791B78 #794B1B #1B791C

square

#1B4979 #791B78 #794B1B #1B791C

split-complementary

#1B4979 #791C1B #78791B

monochromatic

#060F19 #102B47 #1B4979 #2667AB #3B86D3

Accessibility & contrast

On white

9.23

#1B4979 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#1B4979 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4979

9.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4979	#FFFFFF	#000000	##FFFFFF
##1B4979	1.00	9.23	2.28	9.23
#FFFFFF	9.23	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#334C7B

Deuteranopia (green-blind)

#244378

Tritanopia (blue-blind)

#00545B

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b4979;
/* rgb */ color: rgb(27, 73, 121);
/* oklch */ color: oklch(40.0% 0.095 252.2);

Tailwind

colors: {
  custom: {
    50: '#667ba0',
    500: '#1b4979',
    950: '#000000',
  },
}

SCSS

$custom: #1b4979;
$custom-light: #667ba0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4979",
  "rgb": {
    "r": 27,
    "g": 73,
    "b": 121
  },
  "hsl": {
    "h": 210.638,
    "s": 63.514,
    "l": 29.02
  },
  "oklch": {
    "l": 0.39972,
    "c": 0.09527,
    "h": 252.2
  },
  "luminance": 0.06379
}

Semantic roles & 50–950 ramp

primary

#1B4979

secondary

#AD7943

accent

#9641E7

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06090E

muted

#7A7B7E

Preview Lab

Preview with #1B4979

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

Preview Lab → · Contrast checker → · Palette generator →