#1A297C#1A297C

#1A297C is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.0% C 0.141 H 269.0°. Best body text is #FFFFFF at 12.71:1 contrast (WCAG AA passes).

Color values

HEX	#1A297C
RGB	rgb(26, 41, 124)
HSL	hsl(231, 65%, 29%)
HSV	hsv(231, 79%, 49%)
CMYK	cmyk(79%, 66.9%, 0%, 51.4%)
CIE-LAB	lab(21.06, 25.80, -48.72)
CIE-LCH	lch(21.06, 55.13, 297.90°)
OKLab	oklab(32.97% -0.0026 -0.1409)
OKLCH	oklch(32.97% 0.141 269)
XYZ	xyz(4.8558, 3.2602, 19.4382)
Luminance	0.0326 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A297C #7C6D1A

analogous

#1A5A7C #1A297C #3C1A7C

triadic

#1A297C #7C1A29 #297C1A

tetradic

#1A297C #7C1A5A #7C6D1A #1A7C3C

square

#1A297C #7C1A5A #7C6D1A #1A7C3C

split-complementary

#1A297C #7C3C1A #5A7C1A

monochromatic

#050819 #0F1849 #1A297C #253AAF #3B52D6

Accessibility & contrast

On white

12.71

#1A297C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#1A297C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A297C

12.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A297C	#FFFFFF	#000000	##FFFFFF
##1A297C	1.00	12.71	1.65	12.71
#FFFFFF	12.71	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377F

Deuteranopia (green-blind)

#002E7A

Tritanopia (blue-blind)

#003F4E

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1a297c;
/* rgb */ color: rgb(26, 41, 124);
/* oklch */ color: oklch(33.0% 0.141 269.0);

Tailwind

colors: {
  custom: {
    50: '#6862a3',
    500: '#1a297c',
    950: '#000000',
  },
}

SCSS

$custom: #1a297c;
$custom-light: #6862a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1a297c",
  "rgb": {
    "r": 26,
    "g": 41,
    "b": 124
  },
  "hsl": {
    "h": 230.816,
    "s": 65.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.32965,
    "c": 0.14096,
    "h": 269
  },
  "luminance": 0.03261
}

Semantic roles & 50–950 ramp

primary

#1A297C

secondary

#B09F42

accent

#CE40E8

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1A297C

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

Preview Lab → · Contrast checker → · Palette generator →