#1A397E#1A397E

#1A397E is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.5% C 0.123 H 263.4°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#1A397E
RGB	rgb(26, 57, 126)
HSL	hsl(221, 66%, 30%)
HSV	hsv(221, 79%, 49%)
CMYK	cmyk(79.4%, 54.8%, 0%, 50.6%)
CIE-LAB	lab(25.72, 15.36, -42.39)
CIE-LCH	lch(25.72, 45.09, 289.92°)
OKLab	oklab(36.5% -0.0142 -0.1221)
OKLCH	oklch(36.5% 0.123 263.4)
XYZ	xyz(5.6537, 4.6516, 20.3345)
Luminance	0.0465 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A397E #7E5F1A

analogous

#1A6B7E #1A397E #2D1A7E

triadic

#1A397E #7E1A39 #397E1A

tetradic

#1A397E #7E1A6B #7E5F1A #1A7E2D

square

#1A397E #7E1A6B #7E5F1A #1A7E2D

split-complementary

#1A397E #7E2D1A #6B7E1A

monochromatic

#050B19 #10224B #1A397E #2450B1 #3C6CD7

Accessibility & contrast

On white

10.88

#1A397E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#1A397E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A397E

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A397E	#FFFFFF	#000000	##FFFFFF
##1A397E	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#064280

Deuteranopia (green-blind)

#00397D

Tritanopia (blue-blind)

#004A55

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1a397e;
/* rgb */ color: rgb(26, 57, 126);
/* oklch */ color: oklch(36.5% 0.123 263.4);

Tailwind

colors: {
  custom: {
    50: '#676ea4',
    500: '#1a397e',
    950: '#000000',
  },
}

SCSS

$custom: #1a397e;
$custom-light: #676ea4;
$custom-dark: #000000;

JSON

{
  "hex": "#1a397e",
  "rgb": {
    "r": 26,
    "g": 57,
    "b": 126
  },
  "hsl": {
    "h": 221.4,
    "s": 65.789,
    "l": 29.804
  },
  "oklch": {
    "l": 0.36502,
    "c": 0.12294,
    "h": 263.4
  },
  "luminance": 0.04652
}

Semantic roles & 50–950 ramp

primary

#1A397E

secondary

#B28F42

accent

#B43FE9

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1A397E

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

Preview Lab → · Contrast checker → · Palette generator →