#1B4D6E#1B4D6E

#1B4D6E is a dark, moderate cyan. Relative luminance 0.067; OKLCH L 40.3% C 0.077 H 241.4°. Best body text is #FFFFFF at 9.00:1 contrast (WCAG AA passes).

Color values

HEX	#1B4D6E
RGB	rgb(27, 77, 110)
HSL	hsl(204, 61%, 27%)
HSV	hsv(204, 75%, 43%)
CMYK	cmyk(75.5%, 30%, 0%, 56.9%)
CIE-LAB	lab(31.03, -4.54, -23.84)
CIE-LCH	lch(31.03, 24.26, 259.21°)
OKLab	oklab(40.31% -0.0367 -0.0673)
OKLCH	oklch(40.31% 0.077 241.4)
XYZ	xyz(5.9193, 6.6659, 15.7235)
Luminance	0.0667 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4D6E #6E3C1B

analogous

#1B6E66 #1B4D6E #1B246E

triadic

#1B4D6E #6E1B4D #4D6E1B

tetradic

#1B4D6E #661B6E #6E3C1B #246E1B

square

#1B4D6E #661B6E #6E3C1B #246E1B

split-complementary

#1B4D6E #6E1B24 #6E661B

monochromatic

#061119 #0F2B3D #1B4D6E #276F9F #3691CE

Accessibility & contrast

On white

9.00

#1B4D6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#1B4D6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4D6E

9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4D6E	#FFFFFF	#000000	##FFFFFF
##1B4D6E	1.00	9.00	2.33	9.00
#FFFFFF	9.00	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E4D6F

Deuteranopia (green-blind)

#32456D

Tritanopia (blue-blind)

#005559

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1b4d6e;
/* rgb */ color: rgb(27, 77, 110);
/* oklch */ color: oklch(40.3% 0.077 241.4);

Tailwind

colors: {
  custom: {
    50: '#637e97',
    500: '#1b4d6e',
    950: '#000000',
  },
}

SCSS

$custom: #1b4d6e;
$custom-light: #637e97;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4d6e",
  "rgb": {
    "r": 27,
    "g": 77,
    "b": 110
  },
  "hsl": {
    "h": 203.855,
    "s": 60.584,
    "l": 26.863
  },
  "oklch": {
    "l": 0.40314,
    "c": 0.07669,
    "h": 241.4
  },
  "luminance": 0.06667
}

Semantic roles & 50–950 ramp

primary

#1B4D6E

secondary

#A36842

accent

#8444E4

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #1B4D6E

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

Preview Lab → · Contrast checker → · Palette generator →