#1B4E90#1B4E90

#1B4E90 is a dark, vivid cyan. Relative luminance 0.077; OKLCH L 42.8% C 0.122 H 256.5°. Best body text is #FFFFFF at 8.27:1 contrast (WCAG AA passes).

Color values

HEX	#1B4E90
RGB	rgb(27, 78, 144)
HSL	hsl(214, 68%, 34%)
HSV	hsv(214, 81%, 56%)
CMYK	cmyk(81.3%, 45.8%, 0%, 43.5%)
CIE-LAB	lab(33.34, 8.35, -41.25)
CIE-LCH	lch(33.34, 42.09, 281.44°)
OKLab	oklab(42.76% -0.0283 -0.1183)
OKLCH	oklch(42.76% 0.122 256.5)
XYZ	xyz(8.2086, 7.6944, 27.4327)
Luminance	0.0770 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4E90 #905D1B

analogous

#1B8890 #1B4E90 #221B90

triadic

#1B4E90 #901B4E #4E901B

tetradic

#1B4E90 #901B88 #905D1B #1B9022

square

#1B4E90 #901B88 #905D1B #1B9022

split-complementary

#1B4E90 #90221B #88901B

monochromatic

#081629 #11325C #1B4E90 #256AC4 #4989DD

Accessibility & contrast

On white

8.27

#1B4E90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#1B4E90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4E90

8.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4E90	#FFFFFF	#000000	##FFFFFF
##1B4E90	1.00	8.27	2.54	8.27
#FFFFFF	8.27	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C5493

Deuteranopia (green-blind)

#12498F

Tritanopia (blue-blind)

#005E68

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1b4e90;
/* rgb */ color: rgb(27, 78, 144);
/* oklch */ color: oklch(42.8% 0.122 256.5);

Tailwind

colors: {
  custom: {
    50: '#6b7fb1',
    500: '#1b4e90',
    950: '#000000',
  },
}

SCSS

$custom: #1b4e90;
$custom-light: #6b7fb1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4e90",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 144
  },
  "hsl": {
    "h": 213.846,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.42764,
    "c": 0.12165,
    "h": 256.5
  },
  "luminance": 0.07695
}

Semantic roles & 50–950 ramp

primary

#1B4E90

secondary

#BF8B48

accent

#9F3DEB

background

#F6F7FA

surface

#ECEEF5

border

#C7C9CF

text

#080A11

muted

#7A7C80

Preview Lab

Preview with #1B4E90

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

Preview Lab → · Contrast checker → · Palette generator →