#1C2A7B#1C2A7B

#1C2A7B is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.2% C 0.138 H 269.5°. Best body text is #FFFFFF at 12.60:1 contrast (WCAG AA passes).

Color values

HEX	#1C2A7B
RGB	rgb(28, 42, 123)
HSL	hsl(231, 63%, 30%)
HSV	hsv(231, 77%, 48%)
CMYK	cmyk(77.2%, 65.9%, 0%, 51.8%)
CIE-LAB	lab(21.33, 24.95, -47.64)
CIE-LCH	lch(21.33, 53.78, 297.64°)
OKLab	oklab(33.16% -0.0011 -0.1377)
OKLCH	oklch(33.16% 0.138 269.5)
XYZ	xyz(4.8808, 3.3323, 19.1210)
Luminance	0.0333 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2A7B #7B6D1C

analogous

#1C5A7B #1C2A7B #3E1C7B

triadic

#1C2A7B #7B1C2A #2A7B1C

tetradic

#1C2A7B #7B1C5A #7B6D1C #1C7B3E

square

#1C2A7B #7B1C5A #7B6D1C #1C7B3E

split-complementary

#1C2A7B #7B3E1C #5A7B1C

monochromatic

#060919 #111949 #1C2A7B #273BAD #3E54D3

Accessibility & contrast

On white

12.60

#1C2A7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1C2A7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2A7B

12.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2A7B	#FFFFFF	#000000	##FFFFFF
##1C2A7B	1.00	12.60	1.67	12.60
#FFFFFF	12.60	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00387E

Deuteranopia (green-blind)

#002F79

Tritanopia (blue-blind)

#003F4E

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1c2a7b;
/* rgb */ color: rgb(28, 42, 123);
/* oklch */ color: oklch(33.2% 0.138 269.5);

Tailwind

colors: {
  custom: {
    50: '#6863a2',
    500: '#1c2a7b',
    950: '#000000',
  },
}

SCSS

$custom: #1c2a7b;
$custom-light: #6863a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2a7b",
  "rgb": {
    "r": 28,
    "g": 42,
    "b": 123
  },
  "hsl": {
    "h": 231.158,
    "s": 62.914,
    "l": 29.608
  },
  "oklch": {
    "l": 0.33163,
    "c": 0.13771,
    "h": 269.5
  },
  "luminance": 0.03333
}

Semantic roles & 50–950 ramp

primary

#1C2A7B

secondary

#AF9F44

accent

#CE42E6

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1C2A7B

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

Preview Lab → · Contrast checker → · Palette generator →