#1B5885#1B5885

#1B5885 is a dark, moderate cyan. Relative luminance 0.089; OKLCH L 44.5% C 0.096 H 245.1°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#1B5885
RGB	rgb(27, 88, 133)
HSL	hsl(205, 66%, 31%)
HSV	hsv(205, 80%, 52%)
CMYK	cmyk(79.7%, 33.8%, 0%, 47.8%)
CIE-LAB	lab(35.80, -2.58, -30.61)
CIE-LCH	lch(35.80, 30.72, 265.18°)
OKLab	oklab(44.48% -0.0404 -0.0869)
OKLCH	oklch(44.48% 0.096 245.1)
XYZ	xyz(8.1737, 8.9049, 23.4738)
Luminance	0.0891 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5885 #85481B

analogous

#1B857D #1B5885 #1B2385

triadic

#1B5885 #851B58 #58851B

tetradic

#1B5885 #7D1B85 #85481B #23851B

square

#1B5885 #7D1B85 #85481B #23851B

split-complementary

#1B5885 #851B23 #857D1B

monochromatic

#06151F #113652 #1B5885 #257AB8 #4299D9

Accessibility & contrast

On white

7.55

#1B5885 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#1B5885 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5885

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5885	#FFFFFF	#000000	##FFFFFF
##1B5885	1.00	7.55	2.78	7.55
#FFFFFF	7.55	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#435A87

Deuteranopia (green-blind)

#345084

Tritanopia (blue-blind)

#006368

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1b5885;
/* rgb */ color: rgb(27, 88, 133);
/* oklch */ color: oklch(44.5% 0.096 245.1);

Tailwind

colors: {
  custom: {
    50: '#6886a9',
    500: '#1b5885',
    950: '#000000',
  },
}

SCSS

$custom: #1b5885;
$custom-light: #6886a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5885",
  "rgb": {
    "r": 27,
    "g": 88,
    "b": 133
  },
  "hsl": {
    "h": 205.472,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.44477,
    "c": 0.09585,
    "h": 245.1
  },
  "luminance": 0.08906
}

Semantic roles & 50–950 ramp

primary

#1B5885

secondary

#B87544

accent

#873FE9

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #1B5885

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

Preview Lab → · Contrast checker → · Palette generator →