#1B597E#1B597E

#1B597E is a dark, moderate cyan. Relative luminance 0.089; OKLCH L 44.3% C 0.086 H 239.6°. Best body text is #FFFFFF at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#1B597E
RGB	rgb(27, 89, 126)
HSL	hsl(202, 65%, 30%)
HSV	hsv(202, 79%, 49%)
CMYK	cmyk(78.6%, 29.4%, 0%, 50.6%)
CIE-LAB	lab(35.76, -5.92, -26.39)
CIE-LCH	lch(35.76, 27.04, 257.36°)
OKLab	oklab(44.33% -0.0437 -0.0746)
OKLCH	oklch(44.33% 0.086 239.6)
XYZ	xyz(7.7888, 8.8832, 21.0388)
Luminance	0.0888 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B597E #7E401B

analogous

#1B7E71 #1B597E #1B287E

triadic

#1B597E #7E1B59 #597E1B

tetradic

#1B597E #711B7E #7E401B #287E1B

square

#1B597E #711B7E #7E401B #287E1B

split-complementary

#1B597E #7E1B28 #7E711B

monochromatic

#051219 #10354C #1B597E #267DB0 #3E9DD6

Accessibility & contrast

On white

7.56

#1B597E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#1B597E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B597E

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B597E	#FFFFFF	#000000	##FFFFFF
##1B597E	1.00	7.56	2.78	7.56
#FFFFFF	7.56	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#485980

Deuteranopia (green-blind)

#3A507D

Tritanopia (blue-blind)

#006266

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1b597e;
/* rgb */ color: rgb(27, 89, 126);
/* oklch */ color: oklch(44.3% 0.086 239.6);

Tailwind

colors: {
  custom: {
    50: '#6787a3',
    500: '#1b597e',
    950: '#000000',
  },
}

SCSS

$custom: #1b597e;
$custom-light: #6787a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b597e",
  "rgb": {
    "r": 27,
    "g": 89,
    "b": 126
  },
  "hsl": {
    "h": 202.424,
    "s": 64.706,
    "l": 30
  },
  "oklch": {
    "l": 0.44325,
    "c": 0.08647,
    "h": 239.6
  },
  "luminance": 0.08884
}

Semantic roles & 50–950 ramp

primary

#1B597E

secondary

#B26C43

accent

#7F40E8

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #1B597E

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

Preview Lab → · Contrast checker → · Palette generator →