#1B5977#1B5977

#1B5977 is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 43.9% C 0.079 H 234.0°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#1B5977
RGB	rgb(27, 89, 119)
HSL	hsl(200, 63%, 29%)
HSV	hsv(200, 77%, 47%)
CMYK	cmyk(77.3%, 25.2%, 0%, 53.3%)
CIE-LAB	lab(35.42, -8.58, -22.60)
CIE-LCH	lch(35.42, 24.18, 249.21°)
OKLab	oklab(43.94% -0.0463 -0.0636)
OKLCH	oklch(43.94% 0.079 234)
XYZ	xyz(7.3528, 8.7088, 18.7426)
Luminance	0.0871 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5977 #77391B

analogous

#1B7767 #1B5977 #1B2B77

triadic

#1B5977 #771B59 #59771B

tetradic

#1B5977 #671B77 #77391B #2B771B

square

#1B5977 #671B77 #77391B #2B771B

split-complementary

#1B5977 #771B2B #77671B

monochromatic

#061319 #103445 #1B5977 #267EA9 #3AA1D2

Accessibility & contrast

On white

7.66

#1B5977 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#1B5977 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5977

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5977	#FFFFFF	#000000	##FFFFFF
##1B5977	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A5878

Deuteranopia (green-blind)

#3E4F77

Tritanopia (blue-blind)

#006163

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1b5977;
/* rgb */ color: rgb(27, 89, 119);
/* oklch */ color: oklch(43.9% 0.079 234.0);

Tailwind

colors: {
  custom: {
    50: '#66879e',
    500: '#1b5977',
    950: '#000000',
  },
}

SCSS

$custom: #1b5977;
$custom-light: #66879e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5977",
  "rgb": {
    "r": 27,
    "g": 89,
    "b": 119
  },
  "hsl": {
    "h": 199.565,
    "s": 63.014,
    "l": 28.627
  },
  "oklch": {
    "l": 0.43942,
    "c": 0.07869,
    "h": 234
  },
  "luminance": 0.0871
}

Semantic roles & 50–950 ramp

primary

#1B5977

secondary

#AB6542

accent

#7742E6

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #1B5977

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

Preview Lab → · Contrast checker → · Palette generator →