#1F2998#1F2998

#1F2998 is a dark, vivid blue. Relative luminance 0.041; OKLCH L 36.1% C 0.177 H 269.9°. Best body text is #FFFFFF at 11.48:1 contrast (WCAG AA passes).

Color values

HEX	#1F2998
RGB	rgb(31, 41, 152)
HSL	hsl(235, 66%, 36%)
HSV	hsv(235, 80%, 60%)
CMYK	cmyk(79.6%, 73%, 0%, 40.4%)
CIE-LAB	lab(24.14, 36.80, -61.12)
CIE-LCH	lch(24.14, 71.35, 301.05°)
OKLab	oklab(36.13% -0.0002 -0.177)
OKLCH	oklch(36.13% 0.177 269.9)
XYZ	xyz(7.0236, 4.1434, 30.1293)
Luminance	0.0414 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2998 #988E1F

analogous

#1F6598 #1F2998 #511F98

triadic

#1F2998 #981F29 #29981F

tetradic

#1F2998 #981F65 #988E1F #1F9851

square

#1F2998 #981F65 #988E1F #1F9851

split-complementary

#1F2998 #98511F #65981F

monochromatic

#0A0E32 #151B65 #1F2998 #2937CB #5560DC

Accessibility & contrast

On white

11.48

#1F2998 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#1F2998 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2998

11.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2998	#FFFFFF	#000000	##FFFFFF
##1F2998	1.00	11.48	1.83	11.48
#FFFFFF	11.48	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F9B

Deuteranopia (green-blind)

#003396

Tritanopia (blue-blind)

#00495E

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #1f2998;
/* rgb */ color: rgb(31, 41, 152);
/* oklch */ color: oklch(36.1% 0.177 269.9);

Tailwind

colors: {
  custom: {
    50: '#7163b7',
    500: '#1f2998',
    950: '#000000',
  },
}

SCSS

$custom: #1f2998;
$custom-light: #7163b7;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2998",
  "rgb": {
    "r": 31,
    "g": 41,
    "b": 152
  },
  "hsl": {
    "h": 235.041,
    "s": 66.12,
    "l": 35.882
  },
  "oklch": {
    "l": 0.36126,
    "c": 0.17702,
    "h": 269.9
  },
  "luminance": 0.04144
}

Semantic roles & 50–950 ramp

primary

#1F2998

secondary

#C0B753

accent

#DB3FE9

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090511

muted

#7B7A80

Preview Lab

Preview with #1F2998

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

Preview Lab → · Contrast checker → · Palette generator →