#1B4E5D#1B4E5D

#1B4E5D is a dark, muted cyan. Relative luminance 0.065; OKLCH L 39.7% C 0.059 H 220.7°. Best body text is #FFFFFF at 9.15:1 contrast (WCAG AA passes).

Color values

HEX	#1B4E5D
RGB	rgb(27, 78, 93)
HSL	hsl(194, 55%, 24%)
HSV	hsv(194, 71%, 36%)
CMYK	cmyk(71%, 16.1%, 0%, 63.5%)
CIE-LAB	lab(30.57, -11.52, -13.78)
CIE-LCH	lch(30.57, 17.96, 230.09°)
OKLab	oklab(39.68% -0.0446 -0.0384)
OKLCH	oklch(39.68% 0.059 220.7)
XYZ	xyz(5.1514, 6.4715, 11.3315)
Luminance	0.0647 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4E5D #5D2A1B

analogous

#1B5D4B #1B4E5D #1B2D5D

triadic

#1B4E5D #5D1B4E #4E5D1B

tetradic

#1B4E5D #4B1B5D #5D2A1B #2D5D1B

square

#1B4E5D #4B1B5D #5D2A1B #2D5D1B

split-complementary

#1B4E5D #5D1B2D #5D4B1B

monochromatic

#071418 #0D262E #1B4E5D #29768C #379EBC

Accessibility & contrast

On white

9.15

#1B4E5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#1B4E5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4E5D

9.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4E5D	#FFFFFF	#000000	##FFFFFF
##1B4E5D	1.00	9.15	2.29	9.15
#FFFFFF	9.15	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#454C5E

Deuteranopia (green-blind)

#3C455D

Tritanopia (blue-blind)

#005353

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1b4e5d;
/* rgb */ color: rgb(27, 78, 93);
/* oklch */ color: oklch(39.7% 0.059 220.7);

Tailwind

colors: {
  custom: {
    50: '#617f8b',
    500: '#1b4e5d',
    950: '#000000',
  },
}

SCSS

$custom: #1b4e5d;
$custom-light: #617f8b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4e5d",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 93
  },
  "hsl": {
    "h": 193.636,
    "s": 55,
    "l": 23.529
  },
  "oklch": {
    "l": 0.39684,
    "c": 0.05887,
    "h": 220.7
  },
  "luminance": 0.06472
}

Semantic roles & 50–950 ramp

primary

#1B4E5D

secondary

#935441

accent

#6B49DE

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#050A0C

muted

#7A7C7D

Preview Lab

Preview with #1B4E5D

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

Preview Lab → · Contrast checker → · Palette generator →