#1A387A#1A387A

#1A387A is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.9% C 0.118 H 263.3°. Best body text is #FFFFFF at 11.11:1 contrast (WCAG AA passes).

Color values

HEX	#1A387A
RGB	rgb(26, 56, 122)
HSL	hsl(221, 65%, 29%)
HSV	hsv(221, 79%, 48%)
CMYK	cmyk(78.7%, 54.1%, 0%, 52.2%)
CIE-LAB	lab(25.11, 14.43, -40.85)
CIE-LCH	lch(25.11, 43.32, 289.45°)
OKLab	oklab(35.95% -0.0138 -0.1176)
OKLCH	oklch(35.95% 0.118 263.3)
XYZ	xyz(5.3518, 4.4525, 18.9859)
Luminance	0.0445 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A387A #7A5C1A

analogous

#1A687A #1A387A #2C1A7A

triadic

#1A387A #7A1A38 #387A1A

tetradic

#1A387A #7A1A68 #7A5C1A #1A7A2C

square

#1A387A #7A1A68 #7A5C1A #1A7A2C

split-complementary

#1A387A #7A2C1A #687A1A

monochromatic

#050C19 #0F2148 #1A387A #254FAC #396AD5

Accessibility & contrast

On white

11.11

#1A387A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#1A387A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A387A

11.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A387A	#FFFFFF	#000000	##FFFFFF
##1A387A	1.00	11.11	1.89	11.11
#FFFFFF	11.11	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B407C

Deuteranopia (green-blind)

#003779

Tritanopia (blue-blind)

#004853

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1a387a;
/* rgb */ color: rgb(26, 56, 122);
/* oklch */ color: oklch(35.9% 0.118 263.3);

Tailwind

colors: {
  custom: {
    50: '#666ea1',
    500: '#1a387a',
    950: '#000000',
  },
}

SCSS

$custom: #1a387a;
$custom-light: #666ea1;
$custom-dark: #000000;

JSON

{
  "hex": "#1a387a",
  "rgb": {
    "r": 26,
    "g": 56,
    "b": 122
  },
  "hsl": {
    "h": 221.25,
    "s": 64.865,
    "l": 29.02
  },
  "oklch": {
    "l": 0.35946,
    "c": 0.1184,
    "h": 263.3
  },
  "luminance": 0.04453
}

Semantic roles & 50–950 ramp

primary

#1A387A

secondary

#AE8C41

accent

#B340E8

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1A387A

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

Preview Lab → · Contrast checker → · Palette generator →