#1A358F#1A358F

#1A358F is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.2% C 0.152 H 266.1°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#1A358F
RGB	rgb(26, 53, 143)
HSL	hsl(226, 69%, 33%)
HSV	hsv(226, 82%, 56%)
CMYK	cmyk(81.8%, 62.9%, 0%, 43.9%)
CIE-LAB	lab(26.00, 25.03, -52.52)
CIE-LCH	lch(26.00, 58.18, 295.48°)
OKLab	oklab(37.16% -0.0105 -0.1519)
OKLCH	oklch(37.16% 0.152 266.1)
XYZ	xyz(6.6553, 4.7482, 26.5470)
Luminance	0.0475 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A358F #8F741A

analogous

#1A6F8F #1A358F #391A8F

triadic

#1A358F #8F1A35 #358F1A

tetradic

#1A358F #8F1A6F #8F741A #1A8F39

square

#1A358F #8F1A6F #8F741A #1A8F39

split-complementary

#1A358F #8F391A #6F8F1A

monochromatic

#070F27 #11225B #1A358F #2348C3 #4669DD

Accessibility & contrast

On white

10.77

#1A358F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1A358F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A358F

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A358F	#FFFFFF	#000000	##FFFFFF
##1A358F	1.00	10.77	1.95	10.77
#FFFFFF	10.77	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004392

Deuteranopia (green-blind)

#00388D

Tritanopia (blue-blind)

#004C5C

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1a358f;
/* rgb */ color: rgb(26, 53, 143);
/* oklch */ color: oklch(37.2% 0.152 266.1);

Tailwind

colors: {
  custom: {
    50: '#6c6bb1',
    500: '#1a358f',
    950: '#000000',
  },
}

SCSS

$custom: #1a358f;
$custom-light: #6c6bb1;
$custom-dark: #000000;

JSON

{
  "hex": "#1a358f",
  "rgb": {
    "r": 26,
    "g": 53,
    "b": 143
  },
  "hsl": {
    "h": 226.154,
    "s": 69.231,
    "l": 33.137
  },
  "oklch": {
    "l": 0.3716,
    "c": 0.15229,
    "h": 266.1
  },
  "luminance": 0.04749
}

Semantic roles & 50–950 ramp

primary

#1A358F

secondary

#BFA346

accent

#C33CEC

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #1A358F

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

Preview Lab → · Contrast checker → · Palette generator →