#1A4181#1A4181

#1A4181 is a dark, moderate blue. Relative luminance 0.056; OKLCH L 38.6% C 0.117 H 259.9°. Best body text is #FFFFFF at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#1A4181
RGB	rgb(26, 65, 129)
HSL	hsl(217, 66%, 30%)
HSV	hsv(217, 80%, 51%)
CMYK	cmyk(79.8%, 49.6%, 0%, 49.4%)
CIE-LAB	lab(28.34, 10.99, -40.04)
CIE-LCH	lch(28.34, 41.52, 285.35°)
OKLab	oklab(38.57% -0.0205 -0.115)
OKLCH	oklch(38.57% 0.117 259.9)
XYZ	xyz(6.2773, 5.5845, 21.5117)
Luminance	0.0558 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A4181 #815A1A

analogous

#1A7481 #1A4181 #271A81

triadic

#1A4181 #811A41 #41811A

tetradic

#1A4181 #811A74 #815A1A #1A8127

square

#1A4181 #811A74 #815A1A #1A8127

split-complementary

#1A4181 #81271A #74811A

monochromatic

#050E1B #10274E #1A4181 #245BB4 #3D78D8

Accessibility & contrast

On white

9.92

#1A4181 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#1A4181 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A4181

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A4181	#FFFFFF	#000000	##FFFFFF
##1A4181	1.00	9.92	2.12	9.92
#FFFFFF	9.92	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4883

Deuteranopia (green-blind)

#003E80

Tritanopia (blue-blind)

#00505A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1a4181;
/* rgb */ color: rgb(26, 65, 129);
/* oklch */ color: oklch(38.6% 0.117 259.9);

Tailwind

colors: {
  custom: {
    50: '#6775a6',
    500: '#1a4181',
    950: '#000000',
  },
}

SCSS

$custom: #1a4181;
$custom-light: #6775a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1a4181",
  "rgb": {
    "r": 26,
    "g": 65,
    "b": 129
  },
  "hsl": {
    "h": 217.282,
    "s": 66.452,
    "l": 30.392
  },
  "oklch": {
    "l": 0.38574,
    "c": 0.11684,
    "h": 259.9
  },
  "luminance": 0.05585
}

Semantic roles & 50–950 ramp

primary

#1A4181

secondary

#B58942

accent

#A93EE9

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1A4181

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

Preview Lab → · Contrast checker → · Palette generator →