#1A387D#1A387D

#1A387D is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.2% C 0.123 H 263.7°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#1A387D
RGB	rgb(26, 56, 125)
HSL	hsl(222, 66%, 30%)
HSV	hsv(222, 79%, 49%)
CMYK	cmyk(79.2%, 55.2%, 0%, 51%)
CIE-LAB	lab(25.35, 15.66, -42.37)
CIE-LCH	lch(25.35, 45.17, 290.28°)
OKLab	oklab(36.19% -0.0135 -0.1221)
OKLCH	oklch(36.19% 0.123 263.7)
XYZ	xyz(5.5405, 4.5280, 19.9800)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A387D #7D5F1A

analogous

#1A6A7D #1A387D #2D1A7D

triadic

#1A387D #7D1A38 #387D1A

tetradic

#1A387D #7D1A6A #7D5F1A #1A7D2D

square

#1A387D #7D1A6A #7D5F1A #1A7D2D

split-complementary

#1A387D #7D2D1A #6A7D1A

monochromatic

#050B19 #0F214A #1A387D #254FB0 #3B6AD6

Accessibility & contrast

On white

11.02

#1A387D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#1A387D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A387D

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A387D	#FFFFFF	#000000	##FFFFFF
##1A387D	1.00	11.02	1.91	11.02
#FFFFFF	11.02	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#04417F

Deuteranopia (green-blind)

#00387C

Tritanopia (blue-blind)

#004954

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1a387d;
/* rgb */ color: rgb(26, 56, 125);
/* oklch */ color: oklch(36.2% 0.123 263.7);

Tailwind

colors: {
  custom: {
    50: '#676ea3',
    500: '#1a387d',
    950: '#000000',
  },
}

SCSS

$custom: #1a387d;
$custom-light: #676ea3;
$custom-dark: #000000;

JSON

{
  "hex": "#1a387d",
  "rgb": {
    "r": 26,
    "g": 56,
    "b": 125
  },
  "hsl": {
    "h": 221.818,
    "s": 65.563,
    "l": 29.608
  },
  "oklch": {
    "l": 0.36194,
    "c": 0.12281,
    "h": 263.7
  },
  "luminance": 0.04529
}

Semantic roles & 50–950 ramp

primary

#1A387D

secondary

#B18F42

accent

#B53FE9

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1A387D

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

Preview Lab → · Contrast checker → · Palette generator →