#1B5787#1B5787

#1B5787 is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.3% C 0.099 H 247.0°. Best body text is #FFFFFF at 7.61:1 contrast (WCAG AA passes).

Color values

HEX	#1B5787
RGB	rgb(27, 87, 135)
HSL	hsl(207, 67%, 32%)
HSV	hsv(207, 80%, 53%)
CMYK	cmyk(80%, 35.6%, 0%, 47.1%)
CIE-LAB	lab(35.59, -1.16, -32.16)
CIE-LCH	lch(35.59, 32.19, 267.93°)
OKLab	oklab(44.35% -0.0388 -0.0915)
OKLCH	oklch(44.35% 0.099 247)
XYZ	xyz(8.2317, 8.7977, 24.1813)
Luminance	0.0880 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5787 #874B1B

analogous

#1B8781 #1B5787 #1B2187

triadic

#1B5787 #871B57 #57871B

tetradic

#1B5787 #811B87 #874B1B #21871B

square

#1B5787 #811B87 #874B1B #21871B

split-complementary

#1B5787 #871B21 #87811B

monochromatic

#071521 #113654 #1B5787 #2578BA #4397D9

Accessibility & contrast

On white

7.61

#1B5787 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#1B5787 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5787

7.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5787	#FFFFFF	#000000	##FFFFFF
##1B5787	1.00	7.61	2.76	7.61
#FFFFFF	7.61	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#415989

Deuteranopia (green-blind)

#314F86

Tritanopia (blue-blind)

#006368

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1b5787;
/* rgb */ color: rgb(27, 87, 135);
/* oklch */ color: oklch(44.3% 0.099 247.0);

Tailwind

colors: {
  custom: {
    50: '#6986aa',
    500: '#1b5787',
    950: '#000000',
  },
}

SCSS

$custom: #1b5787;
$custom-light: #6986aa;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5787",
  "rgb": {
    "r": 27,
    "g": 87,
    "b": 135
  },
  "hsl": {
    "h": 206.667,
    "s": 66.667,
    "l": 31.765
  },
  "oklch": {
    "l": 0.44348,
    "c": 0.09936,
    "h": 247
  },
  "luminance": 0.08799
}

Semantic roles & 50–950 ramp

primary

#1B5787

secondary

#BA7844

accent

#8A3EEA

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #1B5787

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

Preview Lab → · Contrast checker → · Palette generator →