#1B5974#1B5974

#1B5974 is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 43.8% C 0.076 H 231.2°. Best body text is #FFFFFF at 7.70:1 contrast (WCAG AA passes).

Color values

HEX	#1B5974
RGB	rgb(27, 89, 116)
HSL	hsl(198, 62%, 28%)
HSV	hsv(198, 77%, 45%)
CMYK	cmyk(76.7%, 23.3%, 0%, 54.5%)
CIE-LAB	lab(35.28, -9.70, -20.97)
CIE-LCH	lch(35.28, 23.10, 245.16°)
OKLab	oklab(43.78% -0.0474 -0.0589)
OKLCH	oklch(43.78% 0.076 231.2)
XYZ	xyz(7.1755, 8.6379, 17.8087)
Luminance	0.0864 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5974 #74361B

analogous

#1B7462 #1B5974 #1B2C74

triadic

#1B5974 #741B59 #59741B

tetradic

#1B5974 #621B74 #74361B #2C741B

square

#1B5974 #621B74 #74361B #2C741B

split-complementary

#1B5974 #741B2C #74621B

monochromatic

#061319 #0F3342 #1B5974 #277FA6 #39A3D1

Accessibility & contrast

On white

7.70

#1B5974 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#1B5974 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5974

7.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5974	#FFFFFF	#000000	##FFFFFF
##1B5974	1.00	7.70	2.73	7.70
#FFFFFF	7.70	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B5875

Deuteranopia (green-blind)

#3F4F74

Tritanopia (blue-blind)

#006062

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1b5974;
/* rgb */ color: rgb(27, 89, 116);
/* oklch */ color: oklch(43.8% 0.076 231.2);

Tailwind

colors: {
  custom: {
    50: '#65879c',
    500: '#1b5974',
    950: '#000000',
  },
}

SCSS

$custom: #1b5974;
$custom-light: #65879c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5974",
  "rgb": {
    "r": 27,
    "g": 89,
    "b": 116
  },
  "hsl": {
    "h": 198.202,
    "s": 62.238,
    "l": 28.039
  },
  "oklch": {
    "l": 0.43784,
    "c": 0.07564,
    "h": 231.2
  },
  "luminance": 0.08639
}

Semantic roles & 50–950 ramp

primary

#1B5974

secondary

#A96142

accent

#7442E5

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #1B5974

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

Preview Lab → · Contrast checker → · Palette generator →