#1A287F#1A287F

#1A287F is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.1% C 0.146 H 269.2°. Best body text is #FFFFFF at 12.70:1 contrast (WCAG AA passes).

Color values

HEX	#1A287F
RGB	rgb(26, 40, 127)
HSL	hsl(232, 66%, 30%)
HSV	hsv(232, 80%, 50%)
CMYK	cmyk(79.5%, 68.5%, 0%, 50.2%)
CIE-LAB	lab(21.09, 27.65, -50.57)
CIE-LCH	lch(21.09, 57.64, 298.67°)
OKLab	oklab(33.08% -0.0021 -0.1463)
OKLCH	oklch(33.08% 0.146 269.2)
XYZ	xyz(5.0142, 3.2689, 20.4413)
Luminance	0.0327 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A287F #7F711A

analogous

#1A5B7F #1A287F #3E1A7F

triadic

#1A287F #7F1A28 #287F1A

tetradic

#1A287F #7F1A5B #7F711A #1A7F3E

square

#1A287F #7F1A5B #7F711A #1A7F3E

split-complementary

#1A287F #7F3E1A #5B7F1A

monochromatic

#050819 #10184C #1A287F #2438B2 #3C52D7

Accessibility & contrast

On white

12.70

#1A287F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#1A287F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A287F

12.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A287F	#FFFFFF	#000000	##FFFFFF
##1A287F	1.00	12.70	1.65	12.70
#FFFFFF	12.70	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003882

Deuteranopia (green-blind)

#002E7D

Tritanopia (blue-blind)

#003F50

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1a287f;
/* rgb */ color: rgb(26, 40, 127);
/* oklch */ color: oklch(33.1% 0.146 269.2);

Tailwind

colors: {
  custom: {
    50: '#6962a5',
    500: '#1a287f',
    950: '#000000',
  },
}

SCSS

$custom: #1a287f;
$custom-light: #6962a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1a287f",
  "rgb": {
    "r": 26,
    "g": 40,
    "b": 127
  },
  "hsl": {
    "h": 231.683,
    "s": 66.013,
    "l": 30
  },
  "oklch": {
    "l": 0.33078,
    "c": 0.14637,
    "h": 269.2
  },
  "luminance": 0.0327
}

Semantic roles & 50–950 ramp

primary

#1A287F

secondary

#B3A342

accent

#D13FE9

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1A287F

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

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