#1B4C85#1B4C85

#1B4C85 is a dark, moderate cyan. Relative luminance 0.071; OKLCH L 41.5% C 0.109 H 254.6°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#1B4C85
RGB	rgb(27, 76, 133)
HSL	hsl(212, 66%, 31%)
HSV	hsv(212, 80%, 52%)
CMYK	cmyk(79.7%, 42.9%, 0%, 47.8%)
CIE-LAB	lab(32.02, 5.24, -36.61)
CIE-LCH	lch(32.02, 36.99, 278.15°)
OKLab	oklab(41.52% -0.0289 -0.1047)
OKLCH	oklch(41.52% 0.109 254.6)
XYZ	xyz(7.2685, 7.0945, 23.1721)
Luminance	0.0709 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4C85 #85541B

analogous

#1B8185 #1B4C85 #1F1B85

triadic

#1B4C85 #851B4C #4C851B

tetradic

#1B4C85 #851B81 #85541B #1B851F

square

#1B4C85 #851B81 #85541B #1B851F

split-complementary

#1B4C85 #851F1B #81851B

monochromatic

#06121F #112F52 #1B4C85 #2569B8 #4288D9

Accessibility & contrast

On white

8.68

#1B4C85 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#1B4C85 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4C85

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4C85	#FFFFFF	#000000	##FFFFFF
##1B4C85	1.00	8.68	2.42	8.68
#FFFFFF	8.68	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#305187

Deuteranopia (green-blind)

#1E4784

Tritanopia (blue-blind)

#005962

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1b4c85;
/* rgb */ color: rgb(27, 76, 133);
/* oklch */ color: oklch(41.5% 0.109 254.6);

Tailwind

colors: {
  custom: {
    50: '#687da9',
    500: '#1b4c85',
    950: '#000000',
  },
}

SCSS

$custom: #1b4c85;
$custom-light: #687da9;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4c85",
  "rgb": {
    "r": 27,
    "g": 76,
    "b": 133
  },
  "hsl": {
    "h": 212.264,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.41515,
    "c": 0.10863,
    "h": 254.6
  },
  "luminance": 0.07095
}

Semantic roles & 50–950 ramp

primary

#1B4C85

secondary

#B88244

accent

#9A3FE9

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1B4C85

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

Preview Lab → · Contrast checker → · Palette generator →