#1B4E5F#1B4E5F

#1B4E5F is a dark, moderate cyan. Relative luminance 0.065; OKLCH L 39.8% C 0.060 H 223.6°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#1B4E5F
RGB	rgb(27, 78, 95)
HSL	hsl(195, 56%, 24%)
HSV	hsv(195, 72%, 37%)
CMYK	cmyk(71.6%, 17.9%, 0%, 62.7%)
CIE-LAB	lab(30.66, -10.80, -14.92)
CIE-LCH	lch(30.66, 18.42, 234.10°)
OKLab	oklab(39.78% -0.0437 -0.0417)
OKLCH	oklch(39.78% 0.06 223.6)
XYZ	xyz(5.2411, 6.5074, 11.8041)
Luminance	0.0651 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4E5F #5F2C1B

analogous

#1B5F4E #1B4E5F #1B2C5F

triadic

#1B4E5F #5F1B4E #4E5F1B

tetradic

#1B4E5F #4E1B5F #5F2C1B #2C5F1B

square

#1B4E5F #4E1B5F #5F2C1B #2C5F1B

split-complementary

#1B4E5F #5F1B2C #5F4E1B

monochromatic

#071418 #0D272F #1B4E5F #29758F #369CBE

Accessibility & contrast

On white

9.12

#1B4E5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#1B4E5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4E5F

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4E5F	#FFFFFF	#000000	##FFFFFF
##1B4E5F	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#444C60

Deuteranopia (green-blind)

#3B455F

Tritanopia (blue-blind)

#005353

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1b4e5f;
/* rgb */ color: rgb(27, 78, 95);
/* oklch */ color: oklch(39.8% 0.060 223.6);

Tailwind

colors: {
  custom: {
    50: '#617f8c',
    500: '#1b4e5f',
    950: '#000000',
  },
}

SCSS

$custom: #1b4e5f;
$custom-light: #617f8c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4e5f",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 95
  },
  "hsl": {
    "h": 195,
    "s": 55.738,
    "l": 23.922
  },
  "oklch": {
    "l": 0.39781,
    "c": 0.0604,
    "h": 223.6
  },
  "luminance": 0.06508
}

Semantic roles & 50–950 ramp

primary

#1B4E5F

secondary

#955641

accent

#6E49DF

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#050A0C

muted

#7A7C7D

Preview Lab

Preview with #1B4E5F

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

Preview Lab → · Contrast checker → · Palette generator →