#1B597C#1B597C

#1B597C is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.2% C 0.084 H 238.1°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#1B597C
RGB	rgb(27, 89, 124)
HSL	hsl(202, 64%, 30%)
HSV	hsv(202, 78%, 49%)
CMYK	cmyk(78.2%, 28.2%, 0%, 51.4%)
CIE-LAB	lab(35.66, -6.69, -25.31)
CIE-LCH	lch(35.66, 26.18, 255.20°)
OKLab	oklab(44.21% -0.0444 -0.0715)
OKLCH	oklch(44.21% 0.084 238.1)
XYZ	xyz(7.6610, 8.8321, 20.3659)
Luminance	0.0883 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B597C #7C3E1B

analogous

#1B7C6E #1B597C #1B297C

triadic

#1B597C #7C1B59 #597C1B

tetradic

#1B597C #6E1B7C #7C3E1B #297C1B

square

#1B597C #6E1B7C #7C3E1B #297C1B

split-complementary

#1B597C #7C1B29 #7C6E1B

monochromatic

#051219 #10354A #1B597C #267DAE #3D9ED5

Accessibility & contrast

On white

7.59

#1B597C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#1B597C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B597C

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B597C	#FFFFFF	#000000	##FFFFFF
##1B597C	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48597E

Deuteranopia (green-blind)

#3B507B

Tritanopia (blue-blind)

#006265

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #1b597c;
/* rgb */ color: rgb(27, 89, 124);
/* oklch */ color: oklch(44.2% 0.084 238.1);

Tailwind

colors: {
  custom: {
    50: '#6787a2',
    500: '#1b597c',
    950: '#000000',
  },
}

SCSS

$custom: #1b597c;
$custom-light: #6787a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b597c",
  "rgb": {
    "r": 27,
    "g": 89,
    "b": 124
  },
  "hsl": {
    "h": 201.649,
    "s": 64.238,
    "l": 29.608
  },
  "oklch": {
    "l": 0.44213,
    "c": 0.08416,
    "h": 238.1
  },
  "luminance": 0.08833
}

Semantic roles & 50–950 ramp

primary

#1B597C

secondary

#B06A43

accent

#7D41E7

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#070B0F

muted

#7A7C7E

Preview Lab

Preview with #1B597C

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

Preview Lab → · Contrast checker → · Palette generator →