#1B477D#1B477D

#1B477D is a dark, moderate cyan. Relative luminance 0.062; OKLCH L 39.8% C 0.103 H 255.3°. Best body text is #FFFFFF at 9.36:1 contrast (WCAG AA passes).

Color values

HEX	#1B477D
RGB	rgb(27, 71, 125)
HSL	hsl(213, 64%, 30%)
HSV	hsv(213, 78%, 49%)
CMYK	cmyk(78.4%, 43.2%, 0%, 51%)
CIE-LAB	lab(29.96, 5.37, -34.94)
CIE-LCH	lch(29.96, 35.35, 278.74°)
OKLab	oklab(39.75% -0.0261 -0.0999)
OKLCH	oklch(39.75% 0.103 255.3)
XYZ	xyz(6.4055, 6.2194, 20.2609)
Luminance	0.0622 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B477D #7D511B

analogous

#1B787D #1B477D #201B7D

triadic

#1B477D #7D1B47 #477D1B

tetradic

#1B477D #7D1B78 #7D511B #1B7D20

square

#1B477D #7D1B78 #7D511B #1B7D20

split-complementary

#1B477D #7D201B #787D1B

monochromatic

#050E19 #102A4B #1B477D #2664AF #3D81D5

Accessibility & contrast

On white

9.36

#1B477D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#1B477D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B477D

9.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B477D	#FFFFFF	#000000	##FFFFFF
##1B477D	1.00	9.36	2.24	9.36
#FFFFFF	9.36	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D4B7F

Deuteranopia (green-blind)

#1C427C

Tritanopia (blue-blind)

#00545C

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b477d;
/* rgb */ color: rgb(27, 71, 125);
/* oklch */ color: oklch(39.8% 0.103 255.3);

Tailwind

colors: {
  custom: {
    50: '#6779a3',
    500: '#1b477d',
    950: '#000000',
  },
}

SCSS

$custom: #1b477d;
$custom-light: #6779a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b477d",
  "rgb": {
    "r": 27,
    "g": 71,
    "b": 125
  },
  "hsl": {
    "h": 213.061,
    "s": 64.474,
    "l": 29.804
  },
  "oklch": {
    "l": 0.3975,
    "c": 0.10326,
    "h": 255.3
  },
  "luminance": 0.0622
}

Semantic roles & 50–950 ramp

primary

#1B477D

secondary

#B18043

accent

#9C40E7

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1B477D

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

Preview Lab → · Contrast checker → · Palette generator →