#1B4D89#1B4D89

#1B4D89 is a dark, moderate cyan. Relative luminance 0.073; OKLCH L 42.0% C 0.113 H 255.2°. Best body text is #FFFFFF at 8.50:1 contrast (WCAG AA passes).

Color values

HEX	#1B4D89
RGB	rgb(27, 77, 137)
HSL	hsl(213, 67%, 32%)
HSV	hsv(213, 80%, 54%)
CMYK	cmyk(80.3%, 43.8%, 0%, 46.3%)
CIE-LAB	lab(32.58, 6.19, -38.18)
CIE-LCH	lch(32.58, 38.68, 279.21°)
OKLab	oklab(42.03% -0.0289 -0.1093)
OKLCH	oklch(42.03% 0.113 255.2)
XYZ	xyz(7.6195, 7.3460, 24.6784)
Luminance	0.0735 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4D89 #89571B

analogous

#1B8489 #1B4D89 #201B89

triadic

#1B4D89 #891B4D #4D891B

tetradic

#1B4D89 #891B84 #89571B #1B8920

square

#1B4D89 #891B84 #89571B #1B8920

split-complementary

#1B4D89 #89201B #84891B

monochromatic

#071423 #113056 #1B4D89 #256ABC #4488DA

Accessibility & contrast

On white

8.50

#1B4D89 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1B4D89 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4D89

8.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4D89	#FFFFFF	#000000	##FFFFFF
##1B4D89	1.00	8.50	2.47	8.50
#FFFFFF	8.50	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F528B

Deuteranopia (green-blind)

#1B4888

Tritanopia (blue-blind)

#005B64

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1b4d89;
/* rgb */ color: rgb(27, 77, 137);
/* oklch */ color: oklch(42.0% 0.113 255.2);

Tailwind

colors: {
  custom: {
    50: '#697eac',
    500: '#1b4d89',
    950: '#000000',
  },
}

SCSS

$custom: #1b4d89;
$custom-light: #697eac;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4d89",
  "rgb": {
    "r": 27,
    "g": 77,
    "b": 137
  },
  "hsl": {
    "h": 212.727,
    "s": 67.073,
    "l": 32.157
  },
  "oklch": {
    "l": 0.42033,
    "c": 0.11305,
    "h": 255.2
  },
  "luminance": 0.07347
}

Semantic roles & 50–950 ramp

primary

#1B4D89

secondary

#BC8544

accent

#9C3EEA

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1B4D89

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

Preview Lab → · Contrast checker → · Palette generator →