#1B4F86#1B4F86

#1B4F86 is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 42.3% C 0.107 H 252.8°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#1B4F86
RGB	rgb(27, 79, 134)
HSL	hsl(211, 66%, 32%)
HSV	hsv(211, 80%, 53%)
CMYK	cmyk(79.9%, 41%, 0%, 47.5%)
CIE-LAB	lab(33.02, 3.65, -35.64)
CIE-LCH	lch(33.02, 35.83, 275.84°)
OKLab	oklab(42.31% -0.0315 -0.1018)
OKLCH	oklch(42.31% 0.107 252.8)
XYZ	xyz(7.5494, 7.5453, 23.6081)
Luminance	0.0755 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4F86 #86521B

analogous

#1B8586 #1B4F86 #1C1B86

triadic

#1B4F86 #861B4F #4F861B

tetradic

#1B4F86 #861B85 #86521B #1B861C

square

#1B4F86 #861B85 #86521B #1B861C

split-complementary

#1B4F86 #861C1B #85861B

monochromatic

#061320 #113153 #1B4F86 #256DB9 #428CD9

Accessibility & contrast

On white

8.37

#1B4F86 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#1B4F86 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4F86

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4F86	#FFFFFF	#000000	##FFFFFF
##1B4F86	1.00	8.37	2.51	8.37
#FFFFFF	8.37	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#355388

Deuteranopia (green-blind)

#234985

Tritanopia (blue-blind)

#005C64

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1b4f86;
/* rgb */ color: rgb(27, 79, 134);
/* oklch */ color: oklch(42.3% 0.107 252.8);

Tailwind

colors: {
  custom: {
    50: '#697fa9',
    500: '#1b4f86',
    950: '#000000',
  },
}

SCSS

$custom: #1b4f86;
$custom-light: #697fa9;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4f86",
  "rgb": {
    "r": 27,
    "g": 79,
    "b": 134
  },
  "hsl": {
    "h": 210.841,
    "s": 66.46,
    "l": 31.569
  },
  "oklch": {
    "l": 0.42312,
    "c": 0.10655,
    "h": 252.8
  },
  "luminance": 0.07546
}

Semantic roles & 50–950 ramp

primary

#1B4F86

secondary

#B98044

accent

#963EE9

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #1B4F86

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

Preview Lab → · Contrast checker → · Palette generator →