#1B497F#1B497F

#1B497F is a dark, moderate cyan. Relative luminance 0.065; OKLCH L 40.4% C 0.104 H 254.6°. Best body text is #FFFFFF at 9.11:1 contrast (WCAG AA passes).

Color values

HEX	#1B497F
RGB	rgb(27, 73, 127)
HSL	hsl(212, 65%, 30%)
HSV	hsv(212, 79%, 50%)
CMYK	cmyk(78.7%, 42.5%, 0%, 50.2%)
CIE-LAB	lab(30.71, 4.83, -34.99)
CIE-LCH	lch(30.71, 35.32, 277.86°)
OKLab	oklab(40.38% -0.0275 -0.1)
OKLCH	oklch(40.38% 0.104 254.6)
XYZ	xyz(6.6639, 6.5296, 20.9837)
Luminance	0.0653 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B497F #7F511B

analogous

#1B7B7F #1B497F #1F1B7F

triadic

#1B497F #7F1B49 #497F1B

tetradic

#1B497F #7F1B7B #7F511B #1B7F1F

square

#1B497F #7F1B7B #7F511B #1B7F1F

split-complementary

#1B497F #7F1F1B #7B7F1B

monochromatic

#060F1A #102C4D #1B497F #2666B1 #3E84D6

Accessibility & contrast

On white

9.11

#1B497F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#1B497F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B497F

9.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B497F	#FFFFFF	#000000	##FFFFFF
##1B497F	1.00	9.11	2.31	9.11
#FFFFFF	9.11	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F4D81

Deuteranopia (green-blind)

#1E447E

Tritanopia (blue-blind)

#00565D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1b497f;
/* rgb */ color: rgb(27, 73, 127);
/* oklch */ color: oklch(40.4% 0.104 254.6);

Tailwind

colors: {
  custom: {
    50: '#677ba4',
    500: '#1b497f',
    950: '#000000',
  },
}

SCSS

$custom: #1b497f;
$custom-light: #677ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b497f",
  "rgb": {
    "r": 27,
    "g": 73,
    "b": 127
  },
  "hsl": {
    "h": 212.4,
    "s": 64.935,
    "l": 30.196
  },
  "oklch": {
    "l": 0.40375,
    "c": 0.10373,
    "h": 254.6
  },
  "luminance": 0.0653
}

Semantic roles & 50–950 ramp

primary

#1B497F

secondary

#B37F43

accent

#9B40E8

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1B497F

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

Preview Lab → · Contrast checker → · Palette generator →