#1B5785#1B5785

#1B5785 is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.2% C 0.097 H 246.0°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#1B5785
RGB	rgb(27, 87, 133)
HSL	hsl(206, 66%, 31%)
HSV	hsv(206, 80%, 52%)
CMYK	cmyk(79.7%, 34.6%, 0%, 47.8%)
CIE-LAB	lab(35.48, -1.95, -31.11)
CIE-LCH	lch(35.48, 31.18, 266.42°)
OKLab	oklab(44.23% -0.0394 -0.0884)
OKLCH	oklch(44.23% 0.097 246)
XYZ	xyz(8.0922, 8.7419, 23.4466)
Luminance	0.0874 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5785 #85491B

analogous

#1B857E #1B5785 #1B2285

triadic

#1B5785 #851B57 #57851B

tetradic

#1B5785 #7E1B85 #85491B #22851B

square

#1B5785 #7E1B85 #85491B #22851B

split-complementary

#1B5785 #851B22 #857E1B

monochromatic

#06141F #113652 #1B5785 #2578B8 #4297D9

Accessibility & contrast

On white

7.64

#1B5785 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#1B5785 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5785

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5785	#FFFFFF	#000000	##FFFFFF
##1B5785	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#425987

Deuteranopia (green-blind)

#334F84

Tritanopia (blue-blind)

#006268

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1b5785;
/* rgb */ color: rgb(27, 87, 133);
/* oklch */ color: oklch(44.2% 0.097 246.0);

Tailwind

colors: {
  custom: {
    50: '#6886a9',
    500: '#1b5785',
    950: '#000000',
  },
}

SCSS

$custom: #1b5785;
$custom-light: #6886a9;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5785",
  "rgb": {
    "r": 27,
    "g": 87,
    "b": 133
  },
  "hsl": {
    "h": 206.038,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.44226,
    "c": 0.09679,
    "h": 246
  },
  "luminance": 0.08743
}

Semantic roles & 50–950 ramp

primary

#1B5785

secondary

#B87644

accent

#893FE9

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #1B5785

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

Preview Lab → · Contrast checker → · Palette generator →