#1C2597#1C2597

#1C2597 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.2% C 0.181 H 269.5°. Best body text is #FFFFFF at 11.93:1 contrast (WCAG AA passes).

Color values

HEX	#1C2597
RGB	rgb(28, 37, 151)
HSL	hsl(236, 69%, 35%)
HSV	hsv(236, 81%, 59%)
CMYK	cmyk(81.5%, 75.5%, 0%, 40.8%)
CIE-LAB	lab(23.01, 38.65, -62.38)
CIE-LCH	lch(23.01, 73.38, 301.78°)
OKLab	oklab(35.25% -0.0015 -0.1807)
OKLCH	oklch(35.25% 0.181 269.5)
XYZ	xyz(6.7245, 3.8036, 29.6519)
Luminance	0.0380 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C2597 #978E1C

analogous

#1C6297 #1C2597 #511C97

triadic

#1C2597 #971C25 #25971C

tetradic

#1C2597 #971C62 #978E1C #1C9751

square

#1C2597 #971C62 #978E1C #1C9751

split-complementary

#1C2597 #97511C #62971C

monochromatic

#090C30 #121863 #1C2597 #2632CB #4F5ADE

Accessibility & contrast

On white

11.93

#1C2597 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#1C2597 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1C2597

11.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C2597	#FFFFFF	#000000	##FFFFFF
##1C2597	1.00	11.93	1.76	11.93
#FFFFFF	11.93	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D9A

Deuteranopia (green-blind)

#003195

Tritanopia (blue-blind)

#00465C

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1c2597;
/* rgb */ color: rgb(28, 37, 151);
/* oklch */ color: oklch(35.2% 0.181 269.5);

Tailwind

colors: {
  custom: {
    50: '#7061b7',
    500: '#1c2597',
    950: '#000000',
  },
}

SCSS

$custom: #1c2597;
$custom-light: #7061b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1c2597",
  "rgb": {
    "r": 28,
    "g": 37,
    "b": 151
  },
  "hsl": {
    "h": 235.61,
    "s": 68.715,
    "l": 35.098
  },
  "oklch": {
    "l": 0.35246,
    "c": 0.18071,
    "h": 269.5
  },
  "luminance": 0.03804
}

Semantic roles & 50–950 ramp

primary

#1C2597

secondary

#C1B94E

accent

#DF3CEC

background

#F7F5FB

surface

#EDEAF6

border

#C8C6D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #1C2597

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

Preview Lab → · Contrast checker → · Palette generator →