#1A387F#1A387F

#1A387F is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.4% C 0.126 H 263.9°. Best body text is #FFFFFF at 10.96:1 contrast (WCAG AA passes).

Color values

HEX	#1A387F
RGB	rgb(26, 56, 127)
HSL	hsl(222, 66%, 30%)
HSV	hsv(222, 80%, 50%)
CMYK	cmyk(79.5%, 55.9%, 0%, 50.2%)
CIE-LAB	lab(25.50, 16.48, -43.37)
CIE-LCH	lch(25.50, 46.39, 290.80°)
OKLab	oklab(36.36% -0.0133 -0.125)
OKLCH	oklch(36.36% 0.126 263.9)
XYZ	xyz(5.6696, 4.5796, 20.6597)
Luminance	0.0458 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A387F #7F611A

analogous

#1A6B7F #1A387F #2E1A7F

triadic

#1A387F #7F1A38 #387F1A

tetradic

#1A387F #7F1A6B #7F611A #1A7F2E

square

#1A387F #7F1A6B #7F611A #1A7F2E

split-complementary

#1A387F #7F2E1A #6B7F1A

monochromatic

#050B19 #10224C #1A387F #244EB2 #3C6AD7

Accessibility & contrast

On white

10.96

#1A387F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#1A387F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A387F

10.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A387F	#FFFFFF	#000000	##FFFFFF
##1A387F	1.00	10.96	1.92	10.96
#FFFFFF	10.96	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004181

Deuteranopia (green-blind)

#00387E

Tritanopia (blue-blind)

#004955

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1a387f;
/* rgb */ color: rgb(26, 56, 127);
/* oklch */ color: oklch(36.4% 0.126 263.9);

Tailwind

colors: {
  custom: {
    50: '#676ea5',
    500: '#1a387f',
    950: '#000000',
  },
}

SCSS

$custom: #1a387f;
$custom-light: #676ea5;
$custom-dark: #000000;

JSON

{
  "hex": "#1a387f",
  "rgb": {
    "r": 26,
    "g": 56,
    "b": 127
  },
  "hsl": {
    "h": 222.178,
    "s": 66.013,
    "l": 30
  },
  "oklch": {
    "l": 0.36363,
    "c": 0.12572,
    "h": 263.9
  },
  "luminance": 0.0458
}

Semantic roles & 50–950 ramp

primary

#1A387F

secondary

#B39142

accent

#B63FE9

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1A387F

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

Preview Lab → · Contrast checker → · Palette generator →