#1A258F#1A258F

#1A258F is a dark, vivid blue. Relative luminance 0.035; OKLCH L 34.3% C 0.171 H 269.2°. Best body text is #FFFFFF at 12.32:1 contrast (WCAG AA passes).

Color values

HEX	#1A258F
RGB	rgb(26, 37, 143)
HSL	hsl(234, 69%, 33%)
HSV	hsv(234, 82%, 56%)
CMYK	cmyk(81.8%, 74.1%, 0%, 43.9%)
CIE-LAB	lab(22.04, 35.62, -59.05)
CIE-LCH	lch(22.04, 68.96, 301.10°)
OKLab	oklab(34.26% -0.0023 -0.1711)
OKLCH	oklch(34.26% 0.171 269.2)
XYZ	xyz(6.0438, 3.5252, 26.3432)
Luminance	0.0353 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A258F #8F841A

analogous

#1A5F8F #1A258F #491A8F

triadic

#1A258F #8F1A25 #258F1A

tetradic

#1A258F #8F1A5F #8F841A #1A8F49

square

#1A258F #8F1A5F #8F841A #1A8F49

split-complementary

#1A258F #8F491A #5F8F1A

monochromatic

#070A27 #11185B #1A258F #2332C3 #4654DD

Accessibility & contrast

On white

12.32

#1A258F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#1A258F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A258F

12.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A258F	#FFFFFF	#000000	##FFFFFF
##1A258F	1.00	12.32	1.71	12.32
#FFFFFF	12.32	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A92

Deuteranopia (green-blind)

#002F8D

Tritanopia (blue-blind)

#004357

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1a258f;
/* rgb */ color: rgb(26, 37, 143);
/* oklch */ color: oklch(34.3% 0.171 269.2);

Tailwind

colors: {
  custom: {
    50: '#6d60b1',
    500: '#1a258f',
    950: '#000000',
  },
}

SCSS

$custom: #1a258f;
$custom-light: #6d60b1;
$custom-dark: #000000;

JSON

{
  "hex": "#1a258f",
  "rgb": {
    "r": 26,
    "g": 37,
    "b": 143
  },
  "hsl": {
    "h": 234.359,
    "s": 69.231,
    "l": 33.137
  },
  "oklch": {
    "l": 0.34262,
    "c": 0.17108,
    "h": 269.2
  },
  "luminance": 0.03526
}

Semantic roles & 50–950 ramp

primary

#1A258F

secondary

#BFB346

accent

#DB3CEC

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#080511

muted

#7B7980

Preview Lab

Preview with #1A258F

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

Preview Lab → · Contrast checker → · Palette generator →