#1B5078#1B5078

#1B5078 is a dark, moderate cyan. Relative luminance 0.073; OKLCH L 41.7% C 0.087 H 245.1°. Best body text is #FFFFFF at 8.52:1 contrast (WCAG AA passes).

Color values

HEX	#1B5078
RGB	rgb(27, 80, 120)
HSL	hsl(206, 63%, 29%)
HSV	hsv(206, 78%, 47%)
CMYK	cmyk(77.5%, 33.3%, 0%, 52.9%)
CIE-LAB	lab(32.54, -2.57, -27.74)
CIE-LCH	lch(32.54, 27.85, 264.71°)
OKLab	oklab(41.67% -0.0365 -0.0786)
OKLCH	oklch(41.67% 0.087 245.1)
XYZ	xyz(6.7095, 7.3256, 18.8260)
Luminance	0.0733 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5078 #78431B

analogous

#1B7872 #1B5078 #1B2278

triadic

#1B5078 #781B50 #50781B

tetradic

#1B5078 #721B78 #78431B #22781B

square

#1B5078 #721B78 #78431B #22781B

split-complementary

#1B5078 #781B22 #78721B

monochromatic

#061119 #102F46 #1B5078 #2671AA #3B91D3

Accessibility & contrast

On white

8.52

#1B5078 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1B5078 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5078

8.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5078	#FFFFFF	#000000	##FFFFFF
##1B5078	1.00	8.52	2.47	8.52
#FFFFFF	8.52	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E517A

Deuteranopia (green-blind)

#314977

Tritanopia (blue-blind)

#005A5E

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1b5078;
/* rgb */ color: rgb(27, 80, 120);
/* oklch */ color: oklch(41.7% 0.087 245.1);

Tailwind

colors: {
  custom: {
    50: '#66809f',
    500: '#1b5078',
    950: '#000000',
  },
}

SCSS

$custom: #1b5078;
$custom-light: #66809f;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5078",
  "rgb": {
    "r": 27,
    "g": 80,
    "b": 120
  },
  "hsl": {
    "h": 205.806,
    "s": 63.265,
    "l": 28.824
  },
  "oklch": {
    "l": 0.41674,
    "c": 0.0867,
    "h": 245.1
  },
  "luminance": 0.07326
}

Semantic roles & 50–950 ramp

primary

#1B5078

secondary

#AC7043

accent

#8841E6

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0E

muted

#7A7C7E

Preview Lab

Preview with #1B5078

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

Preview Lab → · Contrast checker → · Palette generator →