#1B4A88#1B4A88

#1B4A88 is a dark, moderate cyan. Relative luminance 0.069; OKLCH L 41.2% C 0.115 H 256.7°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#1B4A88
RGB	rgb(27, 74, 136)
HSL	hsl(214, 67%, 32%)
HSV	hsv(214, 80%, 53%)
CMYK	cmyk(80.1%, 45.6%, 0%, 46.7%)
CIE-LAB	lab(31.59, 7.80, -39.14)
CIE-LCH	lch(31.59, 39.91, 281.27°)
OKLab	oklab(41.25% -0.0264 -0.1122)
OKLCH	oklch(41.25% 0.115 256.7)
XYZ	xyz(7.3431, 6.9073, 24.2340)
Luminance	0.0691 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4A88 #88591B

analogous

#1B8188 #1B4A88 #221B88

triadic

#1B4A88 #881B4A #4A881B

tetradic

#1B4A88 #881B81 #88591B #1B8822

square

#1B4A88 #881B81 #88591B #1B8822

split-complementary

#1B4A88 #88221B #81881B

monochromatic

#071222 #112E55 #1B4A88 #2566BB #4484DA

Accessibility & contrast

On white

8.82

#1B4A88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#1B4A88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4A88

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4A88	#FFFFFF	#000000	##FFFFFF
##1B4A88	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A508A

Deuteranopia (green-blind)

#144687

Tritanopia (blue-blind)

#005962

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b4a88;
/* rgb */ color: rgb(27, 74, 136);
/* oklch */ color: oklch(41.2% 0.115 256.7);

Tailwind

colors: {
  custom: {
    50: '#697cab',
    500: '#1b4a88',
    950: '#000000',
  },
}

SCSS

$custom: #1b4a88;
$custom-light: #697cab;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4a88",
  "rgb": {
    "r": 27,
    "g": 74,
    "b": 136
  },
  "hsl": {
    "h": 214.128,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.41246,
    "c": 0.11527,
    "h": 256.7
  },
  "luminance": 0.06908
}

Semantic roles & 50–950 ramp

primary

#1B4A88

secondary

#BB8844

accent

#A03EEA

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1B4A88

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

Preview Lab → · Contrast checker → · Palette generator →