#1A357D#1A357D

#1A357D is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.5% C 0.127 H 265.0°. Best body text is #FFFFFF at 11.36:1 contrast (WCAG AA passes).

Color values

HEX	#1A357D
RGB	rgb(26, 53, 125)
HSL	hsl(224, 66%, 30%)
HSV	hsv(224, 79%, 49%)
CMYK	cmyk(79.2%, 57.6%, 0%, 51%)
CIE-LAB	lab(24.47, 17.78, -43.79)
CIE-LCH	lch(24.47, 47.26, 292.10°)
OKLab	oklab(35.53% -0.0111 -0.1263)
OKLCH	oklch(35.53% 0.127 265)
XYZ	xyz(5.3995, 4.2459, 19.9330)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A357D #7D621A

analogous

#1A677D #1A357D #301A7D

triadic

#1A357D #7D1A35 #357D1A

tetradic

#1A357D #7D1A67 #7D621A #1A7D30

square

#1A357D #7D1A67 #7D621A #1A7D30

split-complementary

#1A357D #7D301A #677D1A

monochromatic

#050B19 #0F204A #1A357D #254AB0 #3B65D6

Accessibility & contrast

On white

11.36

#1A357D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#1A357D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A357D

11.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A357D	#FFFFFF	#000000	##FFFFFF
##1A357D	1.00	11.36	1.85	11.36
#FFFFFF	11.36	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F7F

Deuteranopia (green-blind)

#00367C

Tritanopia (blue-blind)

#004753

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1a357d;
/* rgb */ color: rgb(26, 53, 125);
/* oklch */ color: oklch(35.5% 0.127 265.0);

Tailwind

colors: {
  custom: {
    50: '#676ba3',
    500: '#1a357d',
    950: '#000000',
  },
}

SCSS

$custom: #1a357d;
$custom-light: #676ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#1a357d",
  "rgb": {
    "r": 26,
    "g": 53,
    "b": 125
  },
  "hsl": {
    "h": 223.636,
    "s": 65.563,
    "l": 29.608
  },
  "oklch": {
    "l": 0.35531,
    "c": 0.12679,
    "h": 265
  },
  "luminance": 0.04246
}

Semantic roles & 50–950 ramp

primary

#1A357D

secondary

#B19342

accent

#BA3FE9

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1A357D

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

Preview Lab → · Contrast checker → · Palette generator →