#1B5877#1B5877

#1B5877 is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 43.7% C 0.079 H 235.2°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#1B5877
RGB	rgb(27, 88, 119)
HSL	hsl(200, 63%, 29%)
HSV	hsv(200, 77%, 47%)
CMYK	cmyk(77.3%, 26.1%, 0%, 53.3%)
CIE-LAB	lab(35.09, -7.97, -23.11)
CIE-LCH	lch(35.09, 24.45, 250.98°)
OKLab	oklab(43.68% -0.0452 -0.0651)
OKLCH	oklch(43.68% 0.079 235.2)
XYZ	xyz(7.2702, 8.5435, 18.7151)
Luminance	0.0854 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5877 #773A1B

analogous

#1B7768 #1B5877 #1B2A77

triadic

#1B5877 #771B58 #58771B

tetradic

#1B5877 #681B77 #773A1B #2A771B

square

#1B5877 #681B77 #773A1B #2A771B

split-complementary

#1B5877 #771B2A #77681B

monochromatic

#061219 #103345 #1B5877 #267DA9 #3A9FD2

Accessibility & contrast

On white

7.75

#1B5877 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#1B5877 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5877

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5877	#FFFFFF	#000000	##FFFFFF
##1B5877	1.00	7.75	2.71	7.75
#FFFFFF	7.75	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#495778

Deuteranopia (green-blind)

#3D4F76

Tritanopia (blue-blind)

#006063

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1b5877;
/* rgb */ color: rgb(27, 88, 119);
/* oklch */ color: oklch(43.7% 0.079 235.2);

Tailwind

colors: {
  custom: {
    50: '#66879e',
    500: '#1b5877',
    950: '#000000',
  },
}

SCSS

$custom: #1b5877;
$custom-light: #66879e;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5877",
  "rgb": {
    "r": 27,
    "g": 88,
    "b": 119
  },
  "hsl": {
    "h": 200.217,
    "s": 63.014,
    "l": 28.627
  },
  "oklch": {
    "l": 0.43681,
    "c": 0.07929,
    "h": 235.2
  },
  "luminance": 0.08544
}

Semantic roles & 50–950 ramp

primary

#1B5877

secondary

#AB6642

accent

#7942E6

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #1B5877

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

Preview Lab → · Contrast checker → · Palette generator →