#1B497D#1B497D

#1B497D is a dark, moderate cyan. Relative luminance 0.065; OKLCH L 40.2% C 0.101 H 253.9°. Best body text is #FFFFFF at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#1B497D
RGB	rgb(27, 73, 125)
HSL	hsl(212, 64%, 30%)
HSV	hsv(212, 78%, 49%)
CMYK	cmyk(78.4%, 41.6%, 0%, 51%)
CIE-LAB	lab(30.59, 4.02, -33.94)
CIE-LCH	lch(30.59, 34.18, 276.76°)
OKLab	oklab(40.24% -0.028 -0.0969)
OKLCH	oklch(40.24% 0.101 253.9)
XYZ	xyz(6.5348, 6.4780, 20.3040)
Luminance	0.0648 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B497D #7D4F1B

analogous

#1B7A7D #1B497D #1E1B7D

triadic

#1B497D #7D1B49 #497D1B

tetradic

#1B497D #7D1B7A #7D4F1B #1B7D1E

square

#1B497D #7D1B7A #7D4F1B #1B7D1E

split-complementary

#1B497D #7D1E1B #7A7D1B

monochromatic

#050F19 #102C4B #1B497D #2666AF #3D85D5

Accessibility & contrast

On white

9.15

#1B497D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#1B497D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B497D

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B497D	#FFFFFF	#000000	##FFFFFF
##1B497D	1.00	9.15	2.30	9.15
#FFFFFF	9.15	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304D7F

Deuteranopia (green-blind)

#20447C

Tritanopia (blue-blind)

#00555D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1b497d;
/* rgb */ color: rgb(27, 73, 125);
/* oklch */ color: oklch(40.2% 0.101 253.9);

Tailwind

colors: {
  custom: {
    50: '#677ba3',
    500: '#1b497d',
    950: '#000000',
  },
}

SCSS

$custom: #1b497d;
$custom-light: #677ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b497d",
  "rgb": {
    "r": 27,
    "g": 73,
    "b": 125
  },
  "hsl": {
    "h": 211.837,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.40239,
    "c": 0.10089,
    "h": 253.9
  },
  "luminance": 0.06479
}

Semantic roles & 50–950 ramp

primary

#1B497D

secondary

#B17D43

accent

#9940E7

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1B497D

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

Preview Lab → · Contrast checker → · Palette generator →