#1A4183#1A4183

#1A4183 is a dark, moderate blue. Relative luminance 0.056; OKLCH L 38.7% C 0.120 H 260.3°. Best body text is #FFFFFF at 9.87:1 contrast (WCAG AA passes).

Color values

HEX	#1A4183
RGB	rgb(26, 65, 131)
HSL	hsl(218, 67%, 31%)
HSV	hsv(218, 80%, 51%)
CMYK	cmyk(80.2%, 50.4%, 0%, 48.6%)
CIE-LAB	lab(28.48, 11.81, -41.06)
CIE-LCH	lch(28.48, 42.72, 286.05°)
OKLab	oklab(38.73% -0.0202 -0.118)
OKLCH	oklch(38.73% 0.12 260.3)
XYZ	xyz(6.4115, 5.6382, 22.2187)
Luminance	0.0564 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A4183 #835C1A

analogous

#1A7583 #1A4183 #271A83

triadic

#1A4183 #831A41 #41831A

tetradic

#1A4183 #831A75 #835C1A #1A8327

square

#1A4183 #831A75 #835C1A #1A8327

split-complementary

#1A4183 #83271A #75831A

monochromatic

#060E1D #102850 #1A4183 #245AB6 #3F78D9

Accessibility & contrast

On white

9.87

#1A4183 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#1A4183 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A4183

9.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A4183	#FFFFFF	#000000	##FFFFFF
##1A4183	1.00	9.87	2.13	9.87
#FFFFFF	9.87	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4885

Deuteranopia (green-blind)

#003F82

Tritanopia (blue-blind)

#00515B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1a4183;
/* rgb */ color: rgb(26, 65, 131);
/* oklch */ color: oklch(38.7% 0.120 260.3);

Tailwind

colors: {
  custom: {
    50: '#6875a7',
    500: '#1a4183',
    950: '#000000',
  },
}

SCSS

$custom: #1a4183;
$custom-light: #6875a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1a4183",
  "rgb": {
    "r": 26,
    "g": 65,
    "b": 131
  },
  "hsl": {
    "h": 217.714,
    "s": 66.879,
    "l": 30.784
  },
  "oklch": {
    "l": 0.38728,
    "c": 0.11974,
    "h": 260.3
  },
  "luminance": 0.05639
}

Semantic roles & 50–950 ramp

primary

#1A4183

secondary

#B78B42

accent

#AA3EEA

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1A4183

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

Preview Lab → · Contrast checker → · Palette generator →