#1B5485#1B5485

#1B5485 is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.5% C 0.100 H 248.5°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#1B5485
RGB	rgb(27, 84, 133)
HSL	hsl(208, 66%, 31%)
HSV	hsv(208, 80%, 52%)
CMYK	cmyk(79.7%, 36.8%, 0%, 47.8%)
CIE-LAB	lab(34.53, -0.02, -32.62)
CIE-LCH	lch(34.53, 32.62, 269.96°)
OKLab	oklab(43.48% -0.0365 -0.0928)
OKLCH	oklch(43.48% 0.1 248.5)
XYZ	xyz(7.8543, 8.2662, 23.3673)
Luminance	0.0827 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5485 #854C1B

analogous

#1B8581 #1B5485 #1B1F85

triadic

#1B5485 #851B54 #54851B

tetradic

#1B5485 #811B85 #854C1B #1F851B

square

#1B5485 #811B85 #854C1B #1F851B

split-complementary

#1B5485 #851B1F #85811B

monochromatic

#06141F #113452 #1B5485 #2574B8 #4293D9

Accessibility & contrast

On white

7.91

#1B5485 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#1B5485 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5485

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5485	#FFFFFF	#000000	##FFFFFF
##1B5485	1.00	7.91	2.65	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D5787

Deuteranopia (green-blind)

#2E4D84

Tritanopia (blue-blind)

#006066

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1b5485;
/* rgb */ color: rgb(27, 84, 133);
/* oklch */ color: oklch(43.5% 0.100 248.5);

Tailwind

colors: {
  custom: {
    50: '#6883a9',
    500: '#1b5485',
    950: '#000000',
  },
}

SCSS

$custom: #1b5485;
$custom-light: #6883a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5485",
  "rgb": {
    "r": 27,
    "g": 84,
    "b": 133
  },
  "hsl": {
    "h": 207.736,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.43478,
    "c": 0.09976,
    "h": 248.5
  },
  "luminance": 0.08267
}

Semantic roles & 50–950 ramp

primary

#1B5485

secondary

#B87944

accent

#8D3FE9

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1B5485

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

Preview Lab → · Contrast checker → · Palette generator →