#1A177B#1A177B

#1A177B is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.9% C 0.160 H 272.4°. Best body text is #FFFFFF at 14.46:1 contrast (WCAG AA passes).

Color values

HEX	#1A177B
RGB	rgb(26, 23, 123)
HSL	hsl(242, 68%, 29%)
HSV	hsv(242, 81%, 48%)
CMYK	cmyk(78.9%, 81.3%, 0%, 51.8%)
CIE-LAB	lab(16.81, 36.84, -55.09)
CIE-LCH	lch(16.81, 66.28, 303.77°)
OKLab	oklab(29.88% 0.0067 -0.1594)
OKLCH	oklch(29.88% 0.16 272.4)
XYZ	xyz(4.3063, 2.2620, 18.9447)
Luminance	0.0226 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A177B #787B17

analogous

#17467B #1A177B #4C177B

triadic

#1A177B #7B1A17 #177B1A

tetradic

#1A177B #7B1746 #787B17 #177B4C

square

#1A177B #7B1746 #787B17 #177B4C

split-complementary

#1A177B #7B4C17 #467B17

monochromatic

#05051A #0F0D47 #1A177B #2521AF #3833D9

Accessibility & contrast

On white

14.46

#1A177B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#1A177B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A177B

14.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A177B	#FFFFFF	#000000	##FFFFFF
##1A177B	1.00	14.46	1.45	14.46
#FFFFFF	14.46	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E7E

Deuteranopia (green-blind)

#002479

Tritanopia (blue-blind)

#003649

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1a177b;
/* rgb */ color: rgb(26, 23, 123);
/* oklch */ color: oklch(29.9% 0.160 272.4);

Tailwind

colors: {
  custom: {
    50: '#6956a2',
    500: '#1a177b',
    950: '#000000',
  },
}

SCSS

$custom: #1a177b;
$custom-light: #6956a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1a177b",
  "rgb": {
    "r": 26,
    "g": 23,
    "b": 123
  },
  "hsl": {
    "h": 241.8,
    "s": 68.493,
    "l": 28.627
  },
  "oklch": {
    "l": 0.29879,
    "c": 0.15958,
    "h": 272.4
  },
  "luminance": 0.02262
}

Semantic roles & 50–950 ramp

primary

#1A177B

secondary

#ACB03E

accent

#EB3CE6

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #1A177B

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

Preview Lab → · Contrast checker → · Palette generator →