#1B487D#1B487D

#1B487D is a dark, moderate cyan. Relative luminance 0.063; OKLCH L 40.0% C 0.102 H 254.6°. Best body text is #FFFFFF at 9.25:1 contrast (WCAG AA passes).

Color values

HEX	#1B487D
RGB	rgb(27, 72, 125)
HSL	hsl(212, 64%, 30%)
HSV	hsv(212, 78%, 49%)
CMYK	cmyk(78.4%, 42.4%, 0%, 51%)
CIE-LAB	lab(30.27, 4.70, -34.44)
CIE-LCH	lch(30.27, 34.76, 277.77°)
OKLab	oklab(39.99% -0.0271 -0.0984)
OKLCH	oklch(39.99% 0.102 254.6)
XYZ	xyz(6.4697, 6.3477, 20.2823)
Luminance	0.0635 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B487D #7D501B

analogous

#1B797D #1B487D #1F1B7D

triadic

#1B487D #7D1B48 #487D1B

tetradic

#1B487D #7D1B79 #7D501B #1B7D1F

square

#1B487D #7D1B79 #7D501B #1B7D1F

split-complementary

#1B487D #7D1F1B #797D1B

monochromatic

#050E19 #102B4B #1B487D #2665AF #3D83D5

Accessibility & contrast

On white

9.25

#1B487D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#1B487D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B487D

9.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B487D	#FFFFFF	#000000	##FFFFFF
##1B487D	1.00	9.25	2.27	9.25
#FFFFFF	9.25	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E4C7F

Deuteranopia (green-blind)

#1E437C

Tritanopia (blue-blind)

#00545C

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b487d;
/* rgb */ color: rgb(27, 72, 125);
/* oklch */ color: oklch(40.0% 0.102 254.6);

Tailwind

colors: {
  custom: {
    50: '#677aa3',
    500: '#1b487d',
    950: '#000000',
  },
}

SCSS

$custom: #1b487d;
$custom-light: #677aa3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b487d",
  "rgb": {
    "r": 27,
    "g": 72,
    "b": 125
  },
  "hsl": {
    "h": 212.449,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.39994,
    "c": 0.10207,
    "h": 254.6
  },
  "luminance": 0.06348
}

Semantic roles & 50–950 ramp

primary

#1B487D

secondary

#B17E43

accent

#9B40E7

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1B487D

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

Preview Lab → · Contrast checker → · Palette generator →