#1B4E88#1B4E88

#1B4E88 is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 42.2% C 0.110 H 254.2°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#1B4E88
RGB	rgb(27, 78, 136)
HSL	hsl(212, 67%, 32%)
HSV	hsv(212, 80%, 53%)
CMYK	cmyk(80.1%, 42.6%, 0%, 46.7%)
CIE-LAB	lab(32.83, 5.12, -37.17)
CIE-LCH	lch(32.83, 37.52, 277.84°)
OKLab	oklab(42.2% -0.0301 -0.1063)
OKLCH	oklch(42.2% 0.11 254.2)
XYZ	xyz(7.6187, 7.4585, 24.3259)
Luminance	0.0746 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4E88 #88551B

analogous

#1B8588 #1B4E88 #1F1B88

triadic

#1B4E88 #881B4E #4E881B

tetradic

#1B4E88 #881B85 #88551B #1B881F

square

#1B4E88 #881B85 #88551B #1B881F

split-complementary

#1B4E88 #881F1B #85881B

monochromatic

#071322 #113155 #1B4E88 #256BBB #448ADA

Accessibility & contrast

On white

8.43

#1B4E88 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#1B4E88 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4E88

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4E88	#FFFFFF	#000000	##FFFFFF
##1B4E88	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32538A

Deuteranopia (green-blind)

#1F4987

Tritanopia (blue-blind)

#005C64

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1b4e88;
/* rgb */ color: rgb(27, 78, 136);
/* oklch */ color: oklch(42.2% 0.110 254.2);

Tailwind

colors: {
  custom: {
    50: '#697fab',
    500: '#1b4e88',
    950: '#000000',
  },
}

SCSS

$custom: #1b4e88;
$custom-light: #697fab;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4e88",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 136
  },
  "hsl": {
    "h": 211.927,
    "s": 66.871,
    "l": 31.961
  },
  "oklch": {
    "l": 0.42204,
    "c": 0.11048,
    "h": 254.2
  },
  "luminance": 0.07459
}

Semantic roles & 50–950 ramp

primary

#1B4E88

secondary

#BB8344

accent

#993EEA

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1B4E88

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

Preview Lab → · Contrast checker → · Palette generator →