#1B6597#1B6597

#1B6597 is a mid, moderate cyan. Relative luminance 0.118; OKLCH L 48.8% C 0.106 H 243.6°. Best body text is #FFFFFF at 6.26:1 contrast (WCAG AA passes).

Color values

HEX	#1B6597
RGB	rgb(27, 101, 151)
HSL	hsl(204, 70%, 35%)
HSV	hsv(204, 82%, 59%)
CMYK	cmyk(82.1%, 33.1%, 0%, 40.8%)
CIE-LAB	lab(40.85, -3.71, -33.52)
CIE-LCH	lch(40.85, 33.73, 263.68°)
OKLab	oklab(48.78% -0.0472 -0.0952)
OKLCH	oklch(48.78% 0.106 243.6)
XYZ	xyz(10.6894, 11.7734, 30.9813)
Luminance	0.1177 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B6597 #974D1B

analogous

#1B978B #1B6597 #1B2797

triadic

#1B6597 #971B65 #65971B

tetradic

#1B6597 #8B1B97 #974D1B #27971B

square

#1B6597 #8B1B97 #974D1B #27971B

split-complementary

#1B6597 #971B27 #978B1B

monochromatic

#08202F #124263 #1B6597 #2488CB #4DA4DF

Accessibility & contrast

On white

6.26

#1B6597 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#1B6597 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1B6597

6.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B6597	#FFFFFF	#000000	##FFFFFF
##1B6597	1.00	6.26	3.36	6.26
#FFFFFF	6.26	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E6799

Deuteranopia (green-blind)

#3C5B96

Tritanopia (blue-blind)

#007177

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #1b6597;
/* rgb */ color: rgb(27, 101, 151);
/* oklch */ color: oklch(48.8% 0.106 243.6);

Tailwind

colors: {
  custom: {
    50: '#6d90b6',
    500: '#1b6597',
    950: '#000000',
  },
}

SCSS

$custom: #1b6597;
$custom-light: #6d90b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b6597",
  "rgb": {
    "r": 27,
    "g": 101,
    "b": 151
  },
  "hsl": {
    "h": 204.194,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.48779,
    "c": 0.10627,
    "h": 243.6
  },
  "luminance": 0.11775
}

Semantic roles & 50–950 ramp

primary

#1B6597

secondary

#C17C4C

accent

#833BEC

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#080C11

muted

#7B7D80

Preview Lab

Preview with #1B6597

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

Preview Lab → · Contrast checker → · Palette generator →