#1B4EA6#1B4EA6

#1B4EA6 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.4% C 0.152 H 260.6°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#1B4EA6
RGB	rgb(27, 78, 166)
HSL	hsl(218, 72%, 38%)
HSV	hsv(218, 84%, 65%)
CMYK	cmyk(83.7%, 53%, 0%, 34.9%)
CIE-LAB	lab(34.87, 17.22, -52.07)
CIE-LCH	lch(34.87, 54.84, 288.30°)
OKLab	oklab(44.43% -0.0248 -0.1501)
OKLCH	oklch(44.43% 0.152 260.6)
XYZ	xyz(10.0568, 8.4337, 37.1668)
Luminance	0.0843 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4EA6 #A6731B

analogous

#1B93A6 #1B4EA6 #2E1BA6

triadic

#1B4EA6 #A61B4E #4EA61B

tetradic

#1B4EA6 #A61B93 #A6731B #1BA62E

square

#1B4EA6 #A61B93 #A6731B #1BA62E

split-complementary

#1B4EA6 #A62E1B #93A61B

monochromatic

#0A1D3D #123571 #1B4EA6 #2467DB #588BE4

Accessibility & contrast

On white

7.82

#1B4EA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#1B4EA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4EA6

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4EA6	#FFFFFF	#000000	##FFFFFF
##1B4EA6	1.00	7.82	2.69	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C59A9

Deuteranopia (green-blind)

#004CA4

Tritanopia (blue-blind)

#006472

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1b4ea6;
/* rgb */ color: rgb(27, 78, 166);
/* oklch */ color: oklch(44.4% 0.152 260.6);

Tailwind

colors: {
  custom: {
    50: '#707ec1',
    500: '#1b4ea6',
    950: '#000000',
  },
}

SCSS

$custom: #1b4ea6;
$custom-light: #707ec1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4ea6",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 166
  },
  "hsl": {
    "h": 217.986,
    "s": 72.021,
    "l": 37.843
  },
  "oklch": {
    "l": 0.4443,
    "c": 0.15218,
    "h": 260.6
  },
  "luminance": 0.08435
}

Semantic roles & 50–950 ramp

primary

#1B4EA6

secondary

#C79E56

accent

#AC39EF

background

#F7F7FC

surface

#EDEEF8

border

#C8C9D1

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1B4EA6

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

Preview Lab → · Contrast checker → · Palette generator →