#1A2F81#1A2F81

#1A2F81 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.6% C 0.140 H 267.3°. Best body text is #FFFFFF at 11.88:1 contrast (WCAG AA passes).

Color values

HEX	#1A2F81
RGB	rgb(26, 47, 129)
HSL	hsl(228, 66%, 30%)
HSV	hsv(228, 80%, 51%)
CMYK	cmyk(79.8%, 63.6%, 0%, 49.4%)
CIE-LAB	lab(23.13, 23.62, -48.50)
CIE-LCH	lch(23.13, 53.94, 295.96°)
OKLab	oklab(34.63% -0.0066 -0.1402)
OKLCH	oklch(34.63% 0.14 267.3)
XYZ	xyz(5.4036, 3.8370, 21.2205)
Luminance	0.0384 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A2F81 #816C1A

analogous

#1A6281 #1A2F81 #381A81

triadic

#1A2F81 #811A2F #2F811A

tetradic

#1A2F81 #811A62 #816C1A #1A8138

square

#1A2F81 #811A62 #816C1A #1A8138

split-complementary

#1A2F81 #81381A #62811A

monochromatic

#050A1B #101C4E #1A2F81 #2442B4 #3D5DD8

Accessibility & contrast

On white

11.88

#1A2F81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#1A2F81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A2F81

11.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A2F81	#FFFFFF	#000000	##FFFFFF
##1A2F81	1.00	11.88	1.77	11.88
#FFFFFF	11.88	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C84

Deuteranopia (green-blind)

#00327F

Tritanopia (blue-blind)

#004453

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1a2f81;
/* rgb */ color: rgb(26, 47, 129);
/* oklch */ color: oklch(34.6% 0.140 267.3);

Tailwind

colors: {
  custom: {
    50: '#6967a6',
    500: '#1a2f81',
    950: '#000000',
  },
}

SCSS

$custom: #1a2f81;
$custom-light: #6967a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1a2f81",
  "rgb": {
    "r": 26,
    "g": 47,
    "b": 129
  },
  "hsl": {
    "h": 227.767,
    "s": 66.452,
    "l": 30.392
  },
  "oklch": {
    "l": 0.34634,
    "c": 0.14038,
    "h": 267.3
  },
  "luminance": 0.03838
}

Semantic roles & 50–950 ramp

primary

#1A2F81

secondary

#B59D42

accent

#C73EE9

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1A2F81

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

Preview Lab → · Contrast checker → · Palette generator →