#1B5975#1B5975

#1B5975 is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 43.8% C 0.077 H 232.1°. Best body text is #FFFFFF at 7.69:1 contrast (WCAG AA passes).

Color values

HEX	#1B5975
RGB	rgb(27, 89, 117)
HSL	hsl(199, 63%, 28%)
HSV	hsv(199, 77%, 46%)
CMYK	cmyk(76.9%, 23.9%, 0%, 54.1%)
CIE-LAB	lab(35.32, -9.33, -21.51)
CIE-LCH	lch(35.32, 23.45, 246.55°)
OKLab	oklab(43.84% -0.047 -0.0605)
OKLCH	oklch(43.84% 0.077 232.1)
XYZ	xyz(7.2340, 8.6613, 18.1167)
Luminance	0.0866 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5975 #75371B

analogous

#1B7564 #1B5975 #1B2C75

triadic

#1B5975 #751B59 #59751B

tetradic

#1B5975 #641B75 #75371B #2C751B

square

#1B5975 #641B75 #75371B #2C751B

split-complementary

#1B5975 #751B2C #75641B

monochromatic

#061319 #103343 #1B5975 #267FA7 #39A2D1

Accessibility & contrast

On white

7.69

#1B5975 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#1B5975 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5975

7.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5975	#FFFFFF	#000000	##FFFFFF
##1B5975	1.00	7.69	2.73	7.69
#FFFFFF	7.69	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B5876

Deuteranopia (green-blind)

#3F4F75

Tritanopia (blue-blind)

#006162

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1b5975;
/* rgb */ color: rgb(27, 89, 117);
/* oklch */ color: oklch(43.8% 0.077 232.1);

Tailwind

colors: {
  custom: {
    50: '#65879d',
    500: '#1b5975',
    950: '#000000',
  },
}

SCSS

$custom: #1b5975;
$custom-light: #65879d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5975",
  "rgb": {
    "r": 27,
    "g": 89,
    "b": 117
  },
  "hsl": {
    "h": 198.667,
    "s": 62.5,
    "l": 28.235
  },
  "oklch": {
    "l": 0.43836,
    "c": 0.07664,
    "h": 232.1
  },
  "luminance": 0.08662
}

Semantic roles & 50–950 ramp

primary

#1B5975

secondary

#A96242

accent

#7542E6

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #1B5975

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

Preview Lab → · Contrast checker → · Palette generator →