#1A377A#1A377A

#1A377A is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.7% C 0.120 H 263.8°. Best body text is #FFFFFF at 11.22:1 contrast (WCAG AA passes).

Color values

HEX	#1A377A
RGB	rgb(26, 55, 122)
HSL	hsl(222, 65%, 29%)
HSV	hsv(222, 79%, 48%)
CMYK	cmyk(78.7%, 54.9%, 0%, 52.2%)
CIE-LAB	lab(24.82, 15.13, -41.33)
CIE-LCH	lch(24.82, 44.01, 290.11°)
OKLab	oklab(35.72% -0.013 -0.119)
OKLCH	oklch(35.72% 0.12 263.8)
XYZ	xyz(5.3038, 4.3565, 18.9699)
Luminance	0.0436 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A377A #7A5D1A

analogous

#1A677A #1A377A #2D1A7A

triadic

#1A377A #7A1A37 #377A1A

tetradic

#1A377A #7A1A67 #7A5D1A #1A7A2D

square

#1A377A #7A1A67 #7A5D1A #1A7A2D

split-complementary

#1A377A #7A2D1A #677A1A

monochromatic

#050B19 #0F2048 #1A377A #254EAC #3968D5

Accessibility & contrast

On white

11.22

#1A377A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#1A377A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A377A

11.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A377A	#FFFFFF	#000000	##FFFFFF
##1A377A	1.00	11.22	1.87	11.22
#FFFFFF	11.22	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#06407C

Deuteranopia (green-blind)

#003779

Tritanopia (blue-blind)

#004753

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1a377a;
/* rgb */ color: rgb(26, 55, 122);
/* oklch */ color: oklch(35.7% 0.120 263.8);

Tailwind

colors: {
  custom: {
    50: '#666da1',
    500: '#1a377a',
    950: '#000000',
  },
}

SCSS

$custom: #1a377a;
$custom-light: #666da1;
$custom-dark: #000000;

JSON

{
  "hex": "#1a377a",
  "rgb": {
    "r": 26,
    "g": 55,
    "b": 122
  },
  "hsl": {
    "h": 221.875,
    "s": 64.865,
    "l": 29.02
  },
  "oklch": {
    "l": 0.3572,
    "c": 0.11974,
    "h": 263.8
  },
  "luminance": 0.04357
}

Semantic roles & 50–950 ramp

primary

#1A377A

secondary

#AE8D41

accent

#B540E8

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1A377A

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

Preview Lab → · Contrast checker → · Palette generator →