#1F5DAA#1F5DAA

#1F5DAA is a mid, vivid cyan. Relative luminance 0.110; OKLCH L 48.2% C 0.138 H 256.0°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#1F5DAA
RGB	rgb(31, 93, 170)
HSL	hsl(213, 69%, 39%)
HSV	hsv(213, 82%, 67%)
CMYK	cmyk(81.8%, 45.3%, 0%, 33.3%)
CIE-LAB	lab(39.62, 9.23, -46.79)
CIE-LCH	lch(39.62, 47.69, 281.16°)
OKLab	oklab(48.2% -0.0334 -0.1342)
OKLCH	oklch(48.2% 0.138 256)
XYZ	xyz(11.7324, 11.0209, 39.5313)
Luminance	0.1102 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5DAA #AA6C1F

analogous

#1FA3AA #1F5DAA #261FAA

triadic

#1F5DAA #AA1F5D #5DAA1F

tetradic

#1F5DAA #AA1FA3 #AA6C1F #1FAA26

square

#1F5DAA #AA1FA3 #AA6C1F #1FAA26

split-complementary

#1F5DAA #AA261F #A3AA1F

monochromatic

#0C2442 #164176 #1F5DAA #2D7AD9 #619BE2

Accessibility & contrast

On white

6.55

#1F5DAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#1F5DAA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F5DAA

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5DAA	#FFFFFF	#000000	##FFFFFF
##1F5DAA	1.00	6.55	3.20	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3464AD

Deuteranopia (green-blind)

#1558A8

Tritanopia (blue-blind)

#006F7B

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #1f5daa;
/* rgb */ color: rgb(31, 93, 170);
/* oklch */ color: oklch(48.2% 0.138 256.0);

Tailwind

colors: {
  custom: {
    50: '#728ac4',
    500: '#1f5daa',
    950: '#000000',
  },
}

SCSS

$custom: #1f5daa;
$custom-light: #728ac4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5daa",
  "rgb": {
    "r": 31,
    "g": 93,
    "b": 170
  },
  "hsl": {
    "h": 213.237,
    "s": 69.154,
    "l": 39.412
  },
  "oklch": {
    "l": 0.48195,
    "c": 0.13833,
    "h": 256
  },
  "luminance": 0.11022
}

Semantic roles & 50–950 ramp

primary

#1F5DAA

secondary

#C7985E

accent

#9D3CEC

background

#F7F8FC

surface

#EDF0F8

border

#C8CBD1

text

#090B13

muted

#7B7C82

Preview Lab

Preview with #1F5DAA

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

Preview Lab → · Contrast checker → · Palette generator →