#1B587C#1B587C

#1B587C is a dark, moderate cyan. Relative luminance 0.087; OKLCH L 44.0% C 0.085 H 239.3°. Best body text is #FFFFFF at 7.68:1 contrast (WCAG AA passes).

Color values

HEX	#1B587C
RGB	rgb(27, 88, 124)
HSL	hsl(202, 64%, 30%)
HSV	hsv(202, 78%, 49%)
CMYK	cmyk(78.2%, 29%, 0%, 51.4%)
CIE-LAB	lab(35.33, -6.07, -25.82)
CIE-LCH	lch(35.33, 26.52, 256.78°)
OKLab	oklab(43.96% -0.0434 -0.073)
OKLCH	oklch(43.96% 0.085 239.3)
XYZ	xyz(7.5784, 8.6668, 20.3383)
Luminance	0.0867 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B587C #7C3F1B

analogous

#1B7C70 #1B587C #1B287C

triadic

#1B587C #7C1B58 #587C1B

tetradic

#1B587C #701B7C #7C3F1B #287C1B

square

#1B587C #701B7C #7C3F1B #287C1B

split-complementary

#1B587C #7C1B28 #7C701B

monochromatic

#051219 #10344A #1B587C #267CAE #3D9CD5

Accessibility & contrast

On white

7.68

#1B587C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#1B587C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B587C

7.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B587C	#FFFFFF	#000000	##FFFFFF
##1B587C	1.00	7.68	2.73	7.68
#FFFFFF	7.68	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47587E

Deuteranopia (green-blind)

#3A4F7B

Tritanopia (blue-blind)

#006164

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #1b587c;
/* rgb */ color: rgb(27, 88, 124);
/* oklch */ color: oklch(44.0% 0.085 239.3);

Tailwind

colors: {
  custom: {
    50: '#6787a2',
    500: '#1b587c',
    950: '#000000',
  },
}

SCSS

$custom: #1b587c;
$custom-light: #6787a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b587c",
  "rgb": {
    "r": 27,
    "g": 88,
    "b": 124
  },
  "hsl": {
    "h": 202.268,
    "s": 64.238,
    "l": 29.608
  },
  "oklch": {
    "l": 0.43956,
    "c": 0.08489,
    "h": 239.3
  },
  "luminance": 0.08668
}

Semantic roles & 50–950 ramp

primary

#1B587C

secondary

#B06B43

accent

#7E41E7

background

#F6F8FA

surface

#EBEFF3

border

#C6CACD

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1B587C

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

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