#1A377D#1A377D

#1A377D is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.0% C 0.124 H 264.1°. Best body text is #FFFFFF at 11.13:1 contrast (WCAG AA passes).

Color values

HEX	#1A377D
RGB	rgb(26, 55, 125)
HSL	hsl(222, 66%, 30%)
HSV	hsv(222, 79%, 49%)
CMYK	cmyk(79.2%, 56%, 0%, 51%)
CIE-LAB	lab(25.05, 16.36, -42.84)
CIE-LCH	lch(25.05, 45.86, 290.90°)
OKLab	oklab(35.97% -0.0127 -0.1235)
OKLCH	oklch(35.97% 0.124 264.1)
XYZ	xyz(5.4925, 4.4320, 19.9641)
Luminance	0.0443 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A377D #7D601A

analogous

#1A697D #1A377D #2E1A7D

triadic

#1A377D #7D1A37 #377D1A

tetradic

#1A377D #7D1A69 #7D601A #1A7D2E

square

#1A377D #7D1A69 #7D601A #1A7D2E

split-complementary

#1A377D #7D2E1A #697D1A

monochromatic

#050B19 #0F214A #1A377D #254DB0 #3B69D6

Accessibility & contrast

On white

11.13

#1A377D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#1A377D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A377D

11.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A377D	#FFFFFF	#000000	##FFFFFF
##1A377D	1.00	11.13	1.89	11.13
#FFFFFF	11.13	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00407F

Deuteranopia (green-blind)

#00377C

Tritanopia (blue-blind)

#004854

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1a377d;
/* rgb */ color: rgb(26, 55, 125);
/* oklch */ color: oklch(36.0% 0.124 264.1);

Tailwind

colors: {
  custom: {
    50: '#676da3',
    500: '#1a377d',
    950: '#000000',
  },
}

SCSS

$custom: #1a377d;
$custom-light: #676da3;
$custom-dark: #000000;

JSON

{
  "hex": "#1a377d",
  "rgb": {
    "r": 26,
    "g": 55,
    "b": 125
  },
  "hsl": {
    "h": 222.424,
    "s": 65.563,
    "l": 29.608
  },
  "oklch": {
    "l": 0.35972,
    "c": 0.12413,
    "h": 264.1
  },
  "luminance": 0.04433
}

Semantic roles & 50–950 ramp

primary

#1A377D

secondary

#B19042

accent

#B73FE9

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1A377D

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

Preview Lab → · Contrast checker → · Palette generator →