#1B4B89#1B4B89

#1B4B89 is a dark, moderate cyan. Relative luminance 0.071; OKLCH L 41.6% C 0.115 H 256.4°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#1B4B89
RGB	rgb(27, 75, 137)
HSL	hsl(214, 67%, 32%)
HSV	hsv(214, 80%, 54%)
CMYK	cmyk(80.3%, 45.3%, 0%, 46.3%)
CIE-LAB	lab(31.97, 7.53, -39.16)
CIE-LCH	lch(31.97, 39.88, 280.89°)
OKLab	oklab(41.56% -0.0271 -0.1122)
OKLCH	oklch(41.56% 0.115 256.4)
XYZ	xyz(7.4818, 7.0704, 24.6325)
Luminance	0.0707 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4B89 #89591B

analogous

#1B8289 #1B4B89 #221B89

triadic

#1B4B89 #891B4B #4B891B

tetradic

#1B4B89 #891B82 #89591B #1B8922

square

#1B4B89 #891B82 #89591B #1B8922

split-complementary

#1B4B89 #89221B #82891B

monochromatic

#071323 #112F56 #1B4B89 #2567BC #4486DA

Accessibility & contrast

On white

8.70

#1B4B89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#1B4B89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4B89

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4B89	#FFFFFF	#000000	##FFFFFF
##1B4B89	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B518B

Deuteranopia (green-blind)

#154788

Tritanopia (blue-blind)

#005A63

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #1b4b89;
/* rgb */ color: rgb(27, 75, 137);
/* oklch */ color: oklch(41.6% 0.115 256.4);

Tailwind

colors: {
  custom: {
    50: '#697cac',
    500: '#1b4b89',
    950: '#000000',
  },
}

SCSS

$custom: #1b4b89;
$custom-light: #697cac;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4b89",
  "rgb": {
    "r": 27,
    "g": 75,
    "b": 137
  },
  "hsl": {
    "h": 213.818,
    "s": 67.073,
    "l": 32.157
  },
  "oklch": {
    "l": 0.41555,
    "c": 0.11546,
    "h": 256.4
  },
  "luminance": 0.07071
}

Semantic roles & 50–950 ramp

primary

#1B4B89

secondary

#BC8744

accent

#9F3EEA

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1B4B89

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

Preview Lab → · Contrast checker → · Palette generator →