#1B5697#1B5697

#1B5697 is a mid, vivid cyan. Relative luminance 0.091; OKLCH L 45.1% C 0.122 H 253.9°. Best body text is #FFFFFF at 7.43:1 contrast (WCAG AA passes).

Color values

HEX	#1B5697
RGB	rgb(27, 86, 151)
HSL	hsl(211, 70%, 35%)
HSV	hsv(211, 82%, 59%)
CMYK	cmyk(82.1%, 43%, 0%, 40.8%)
CIE-LAB	lab(36.22, 5.85, -40.89)
CIE-LCH	lch(36.22, 41.30, 278.14°)
OKLab	oklab(45.14% -0.0337 -0.1171)
OKLCH	oklch(45.14% 0.122 253.9)
XYZ	xyz(9.3636, 9.1218, 30.5393)
Luminance	0.0912 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5697 #975C1B

analogous

#1B9497 #1B5697 #1E1B97

triadic

#1B5697 #971B56 #56971B

tetradic

#1B5697 #971B94 #975C1B #1B971E

square

#1B5697 #971B94 #975C1B #1B971E

split-complementary

#1B5697 #971E1B #94971B

monochromatic

#081B2F #123863 #1B5697 #2474CB #4D93DF

Accessibility & contrast

On white

7.43

#1B5697 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#1B5697 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5697

7.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5697	#FFFFFF	#000000	##FFFFFF
##1B5697	1.00	7.43	2.82	7.43
#FFFFFF	7.43	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#355B9A

Deuteranopia (green-blind)

#1F5096

Tritanopia (blue-blind)

#00656F

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1b5697;
/* rgb */ color: rgb(27, 86, 151);
/* oklch */ color: oklch(45.1% 0.122 253.9);

Tailwind

colors: {
  custom: {
    50: '#6d85b6',
    500: '#1b5697',
    950: '#000000',
  },
}

SCSS

$custom: #1b5697;
$custom-light: #6d85b6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5697",
  "rgb": {
    "r": 27,
    "g": 86,
    "b": 151
  },
  "hsl": {
    "h": 211.452,
    "s": 69.663,
    "l": 34.902
  },
  "oklch": {
    "l": 0.45143,
    "c": 0.12182,
    "h": 253.9
  },
  "luminance": 0.09123
}

Semantic roles & 50–950 ramp

primary

#1B5697

secondary

#C18A4C

accent

#983BEC

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080B11

muted

#7B7C80

Preview Lab

Preview with #1B5697

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

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