#1B5976#1B5976

#1B5976 is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 43.9% C 0.078 H 233.1°. Best body text is #FFFFFF at 7.67:1 contrast (WCAG AA passes).

Color values

HEX	#1B5976
RGB	rgb(27, 89, 118)
HSL	hsl(199, 63%, 28%)
HSV	hsv(199, 77%, 46%)
CMYK	cmyk(77.1%, 24.6%, 0%, 53.7%)
CIE-LAB	lab(35.37, -8.96, -22.06)
CIE-LCH	lch(35.37, 23.81, 247.90°)
OKLab	oklab(43.89% -0.0467 -0.0621)
OKLCH	oklch(43.89% 0.078 233.1)
XYZ	xyz(7.2931, 8.6849, 18.4280)
Luminance	0.0869 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5976 #76381B

analogous

#1B7665 #1B5976 #1B2B76

triadic

#1B5976 #761B59 #59761B

tetradic

#1B5976 #651B76 #76381B #2B761B

square

#1B5976 #651B76 #76381B #2B761B

split-complementary

#1B5976 #761B2B #76651B

monochromatic

#061319 #103344 #1B5976 #267FA8 #3AA1D2

Accessibility & contrast

On white

7.67

#1B5976 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#1B5976 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5976

7.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5976	#FFFFFF	#000000	##FFFFFF
##1B5976	1.00	7.67	2.74	7.67
#FFFFFF	7.67	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B5877

Deuteranopia (green-blind)

#3E4F76

Tritanopia (blue-blind)

#006163

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1b5976;
/* rgb */ color: rgb(27, 89, 118);
/* oklch */ color: oklch(43.9% 0.078 233.1);

Tailwind

colors: {
  custom: {
    50: '#66879d',
    500: '#1b5976',
    950: '#000000',
  },
}

SCSS

$custom: #1b5976;
$custom-light: #66879d;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5976",
  "rgb": {
    "r": 27,
    "g": 89,
    "b": 118
  },
  "hsl": {
    "h": 199.121,
    "s": 62.759,
    "l": 28.431
  },
  "oklch": {
    "l": 0.43889,
    "c": 0.07765,
    "h": 233.1
  },
  "luminance": 0.08686
}

Semantic roles & 50–950 ramp

primary

#1B5976

secondary

#AA6442

accent

#7642E6

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #1B5976

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

Preview Lab → · Contrast checker → · Palette generator →