#1A397C#1A397C

#1A397C is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.3% C 0.120 H 263.1°. Best body text is #FFFFFF at 10.94:1 contrast (WCAG AA passes).

Color values

HEX	#1A397C
RGB	rgb(26, 57, 124)
HSL	hsl(221, 65%, 29%)
HSV	hsv(221, 79%, 49%)
CMYK	cmyk(79%, 54%, 0%, 51.4%)
CIE-LAB	lab(25.56, 14.54, -41.38)
CIE-LCH	lch(25.56, 43.86, 289.36°)
OKLab	oklab(36.34% -0.0144 -0.1191)
OKLCH	oklch(36.34% 0.12 263.1)
XYZ	xyz(5.5259, 4.6005, 19.6616)
Luminance	0.0460 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A397C #7C5D1A

analogous

#1A6A7C #1A397C #2C1A7C

triadic

#1A397C #7C1A39 #397C1A

tetradic

#1A397C #7C1A6A #7C5D1A #1A7C2C

square

#1A397C #7C1A6A #7C5D1A #1A7C2C

split-complementary

#1A397C #7C2C1A #6A7C1A

monochromatic

#050C19 #0F2249 #1A397C #2550AF #3B6CD6

Accessibility & contrast

On white

10.94

#1A397C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#1A397C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A397C

10.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A397C	#FFFFFF	#000000	##FFFFFF
##1A397C	1.00	10.94	1.92	10.94
#FFFFFF	10.94	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B417E

Deuteranopia (green-blind)

#00387B

Tritanopia (blue-blind)

#004954

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1a397c;
/* rgb */ color: rgb(26, 57, 124);
/* oklch */ color: oklch(36.3% 0.120 263.1);

Tailwind

colors: {
  custom: {
    50: '#676ea2',
    500: '#1a397c',
    950: '#000000',
  },
}

SCSS

$custom: #1a397c;
$custom-light: #676ea2;
$custom-dark: #000000;

JSON

{
  "hex": "#1a397c",
  "rgb": {
    "r": 26,
    "g": 57,
    "b": 124
  },
  "hsl": {
    "h": 221.02,
    "s": 65.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.36337,
    "c": 0.12001,
    "h": 263.1
  },
  "luminance": 0.04601
}

Semantic roles & 50–950 ramp

primary

#1A397C

secondary

#B08D42

accent

#B340E8

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1A397C

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

Preview Lab → · Contrast checker → · Palette generator →