#1A377F#1A377F

#1A377F is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.1% C 0.127 H 264.3°. Best body text is #FFFFFF at 11.07:1 contrast (WCAG AA passes).

Color values

HEX	#1A377F
RGB	rgb(26, 55, 127)
HSL	hsl(223, 66%, 30%)
HSV	hsv(223, 80%, 50%)
CMYK	cmyk(79.5%, 56.7%, 0%, 50.2%)
CIE-LAB	lab(25.21, 17.18, -43.84)
CIE-LCH	lch(25.21, 47.09, 291.40°)
OKLab	oklab(36.14% -0.0125 -0.1264)
OKLCH	oklch(36.14% 0.127 264.3)
XYZ	xyz(5.6216, 4.4837, 20.6437)
Luminance	0.0448 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A377F #7F621A

analogous

#1A6A7F #1A377F #2F1A7F

triadic

#1A377F #7F1A37 #377F1A

tetradic

#1A377F #7F1A6A #7F621A #1A7F2F

square

#1A377F #7F1A6A #7F621A #1A7F2F

split-complementary

#1A377F #7F2F1A #6A7F1A

monochromatic

#050B19 #10214C #1A377F #244DB2 #3C69D7

Accessibility & contrast

On white

11.07

#1A377F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1A377F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A377F

11.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A377F	#FFFFFF	#000000	##FFFFFF
##1A377F	1.00	11.07	1.90	11.07
#FFFFFF	11.07	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004182

Deuteranopia (green-blind)

#00377E

Tritanopia (blue-blind)

#004955

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1a377f;
/* rgb */ color: rgb(26, 55, 127);
/* oklch */ color: oklch(36.1% 0.127 264.3);

Tailwind

colors: {
  custom: {
    50: '#676da5',
    500: '#1a377f',
    950: '#000000',
  },
}

SCSS

$custom: #1a377f;
$custom-light: #676da5;
$custom-dark: #000000;

JSON

{
  "hex": "#1a377f",
  "rgb": {
    "r": 26,
    "g": 55,
    "b": 127
  },
  "hsl": {
    "h": 222.772,
    "s": 66.013,
    "l": 30
  },
  "oklch": {
    "l": 0.36142,
    "c": 0.12704,
    "h": 264.3
  },
  "luminance": 0.04484
}

Semantic roles & 50–950 ramp

primary

#1A377F

secondary

#B39242

accent

#B83FE9

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1A377F

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

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