#1B4D8D#1B4D8D

#1B4D8D is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 42.3% C 0.119 H 256.3°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#1B4D8D
RGB	rgb(27, 77, 141)
HSL	hsl(214, 68%, 33%)
HSV	hsv(214, 81%, 55%)
CMYK	cmyk(80.9%, 45.4%, 0%, 44.7%)
CIE-LAB	lab(32.84, 7.80, -40.22)
CIE-LCH	lch(32.84, 40.97, 280.98°)
OKLab	oklab(42.31% -0.0281 -0.1153)
OKLCH	oklch(42.31% 0.119 256.3)
XYZ	xyz(7.9118, 7.4629, 26.2176)
Luminance	0.0746 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4D8D #8D5B1B

analogous

#1B868D #1B4D8D #221B8D

triadic

#1B4D8D #8D1B4D #4D8D1B

tetradic

#1B4D8D #8D1B86 #8D5B1B #1B8D22

square

#1B4D8D #8D1B86 #8D5B1B #1B8D22

split-complementary

#1B4D8D #8D221B #868D1B

monochromatic

#071526 #11315A #1B4D8D #2569C0 #4788DC

Accessibility & contrast

On white

8.42

#1B4D8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#1B4D8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4D8D

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4D8D	#FFFFFF	#000000	##FFFFFF
##1B4D8D	1.00	8.42	2.49	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C538F

Deuteranopia (green-blind)

#14488C

Tritanopia (blue-blind)

#005C66

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1b4d8d;
/* rgb */ color: rgb(27, 77, 141);
/* oklch */ color: oklch(42.3% 0.119 256.3);

Tailwind

colors: {
  custom: {
    50: '#6a7eaf',
    500: '#1b4d8d',
    950: '#000000',
  },
}

SCSS

$custom: #1b4d8d;
$custom-light: #6a7eaf;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4d8d",
  "rgb": {
    "r": 27,
    "g": 77,
    "b": 141
  },
  "hsl": {
    "h": 213.684,
    "s": 67.857,
    "l": 32.941
  },
  "oklch": {
    "l": 0.42314,
    "c": 0.11867,
    "h": 256.3
  },
  "luminance": 0.07464
}

Semantic roles & 50–950 ramp

primary

#1B4D8D

secondary

#BD8946

accent

#9F3DEB

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #1B4D8D

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

Preview Lab → · Contrast checker → · Palette generator →