#1B477E#1B477E

#1B477E is a dark, moderate cyan. Relative luminance 0.062; OKLCH L 39.8% C 0.105 H 255.7°. Best body text is #FFFFFF at 9.34:1 contrast (WCAG AA passes).

Color values

HEX	#1B477E
RGB	rgb(27, 71, 126)
HSL	hsl(213, 65%, 30%)
HSV	hsv(213, 79%, 49%)
CMYK	cmyk(78.6%, 43.7%, 0%, 50.6%)
CIE-LAB	lab(30.02, 5.78, -35.46)
CIE-LCH	lch(30.02, 35.93, 279.25°)
OKLab	oklab(39.82% -0.0259 -0.1014)
OKLCH	oklch(39.82% 0.105 255.7)
XYZ	xyz(6.4697, 6.2451, 20.5991)
Luminance	0.0625 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B477E #7E521B

analogous

#1B797E #1B477E #201B7E

triadic

#1B477E #7E1B47 #477E1B

tetradic

#1B477E #7E1B79 #7E521B #1B7E20

square

#1B477E #7E1B79 #7E521B #1B7E20

split-complementary

#1B477E #7E201B #797E1B

monochromatic

#050E19 #102B4C #1B477E #2663B0 #3E81D6

Accessibility & contrast

On white

9.34

#1B477E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#1B477E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B477E

9.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B477E	#FFFFFF	#000000	##FFFFFF
##1B477E	1.00	9.34	2.25	9.34
#FFFFFF	9.34	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C4C80

Deuteranopia (green-blind)

#1B437D

Tritanopia (blue-blind)

#00545C

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1b477e;
/* rgb */ color: rgb(27, 71, 126);
/* oklch */ color: oklch(39.8% 0.105 255.7);

Tailwind

colors: {
  custom: {
    50: '#6779a4',
    500: '#1b477e',
    950: '#000000',
  },
}

SCSS

$custom: #1b477e;
$custom-light: #6779a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b477e",
  "rgb": {
    "r": 27,
    "g": 71,
    "b": 126
  },
  "hsl": {
    "h": 213.333,
    "s": 64.706,
    "l": 30
  },
  "oklch": {
    "l": 0.39819,
    "c": 0.10468,
    "h": 255.7
  },
  "luminance": 0.06246
}

Semantic roles & 50–950 ramp

primary

#1B477E

secondary

#B28143

accent

#9D40E8

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07090F

muted

#7A7B7F

Preview Lab

Preview with #1B477E

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

Preview Lab → · Contrast checker → · Palette generator →