#1B477F#1B477F

#1B477F is a dark, moderate cyan. Relative luminance 0.063; OKLCH L 39.9% C 0.106 H 256.0°. Best body text is #FFFFFF at 9.32:1 contrast (WCAG AA passes).

Color values

HEX	#1B477F
RGB	rgb(27, 71, 127)
HSL	hsl(214, 65%, 30%)
HSV	hsv(214, 79%, 50%)
CMYK	cmyk(78.7%, 44.1%, 0%, 50.2%)
CIE-LAB	lab(30.09, 6.18, -35.99)
CIE-LCH	lch(30.09, 36.51, 279.75°)
OKLab	oklab(39.89% -0.0257 -0.103)
OKLCH	oklch(39.89% 0.106 256)
XYZ	xyz(6.5346, 6.2710, 20.9406)
Luminance	0.0627 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B477F #7F531B

analogous

#1B797F #1B477F #211B7F

triadic

#1B477F #7F1B47 #477F1B

tetradic

#1B477F #7F1B79 #7F531B #1B7F21

square

#1B477F #7F1B79 #7F531B #1B7F21

split-complementary

#1B477F #7F211B #797F1B

monochromatic

#060F1A #102B4D #1B477F #2663B1 #3E81D6

Accessibility & contrast

On white

9.32

#1B477F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#1B477F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B477F

9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B477F	#FFFFFF	#000000	##FFFFFF
##1B477F	1.00	9.32	2.25	9.32
#FFFFFF	9.32	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B4C81

Deuteranopia (green-blind)

#19437E

Tritanopia (blue-blind)

#00545C

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b477f;
/* rgb */ color: rgb(27, 71, 127);
/* oklch */ color: oklch(39.9% 0.106 256.0);

Tailwind

colors: {
  custom: {
    50: '#6779a4',
    500: '#1b477f',
    950: '#000000',
  },
}

SCSS

$custom: #1b477f;
$custom-light: #6779a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b477f",
  "rgb": {
    "r": 27,
    "g": 71,
    "b": 127
  },
  "hsl": {
    "h": 213.6,
    "s": 64.935,
    "l": 30.196
  },
  "oklch": {
    "l": 0.39889,
    "c": 0.10612,
    "h": 256
  },
  "luminance": 0.06272
}

Semantic roles & 50–950 ramp

primary

#1B477F

secondary

#B38243

accent

#9E40E8

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1B477F

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

Preview Lab → · Contrast checker → · Palette generator →