#1F5FAD#1F5FAD

#1F5FAD is a mid, vivid cyan. Relative luminance 0.115; OKLCH L 48.9% C 0.140 H 255.8°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#1F5FAD
RGB	rgb(31, 95, 173)
HSL	hsl(213, 70%, 40%)
HSV	hsv(213, 82%, 68%)
CMYK	cmyk(82.1%, 45.1%, 0%, 32.2%)
CIE-LAB	lab(40.40, 9.11, -47.31)
CIE-LCH	lch(40.40, 48.18, 280.90°)
OKLab	oklab(48.86% -0.0344 -0.1357)
OKLCH	oklch(48.86% 0.14 255.8)
XYZ	xyz(12.1973, 11.4914, 41.1023)
Luminance	0.1149 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5FAD #AD6D1F

analogous

#1FA6AD #1F5FAD #261FAD

triadic

#1F5FAD #AD1F5F #5FAD1F

tetradic

#1F5FAD #AD1FA6 #AD6D1F #1FAD26

square

#1F5FAD #AD1FA6 #AD6D1F #1FAD26

split-complementary

#1F5FAD #AD261F #A6AD1F

monochromatic

#0C2645 #164279 #1F5FAD #2F7CDA #639DE3

Accessibility & contrast

On white

6.37

#1F5FAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#1F5FAD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F5FAD

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5FAD	#FFFFFF	#000000	##FFFFFF
##1F5FAD	1.00	6.37	3.30	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3666B0

Deuteranopia (green-blind)

#1659AB

Tritanopia (blue-blind)

#00727D

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #1f5fad;
/* rgb */ color: rgb(31, 95, 173);
/* oklch */ color: oklch(48.9% 0.140 255.8);

Tailwind

colors: {
  custom: {
    50: '#738bc6',
    500: '#1f5fad',
    950: '#000000',
  },
}

SCSS

$custom: #1f5fad;
$custom-light: #738bc6;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5fad",
  "rgb": {
    "r": 31,
    "g": 95,
    "b": 173
  },
  "hsl": {
    "h": 212.958,
    "s": 69.608,
    "l": 40
  },
  "oklch": {
    "l": 0.4886,
    "c": 0.14002,
    "h": 255.8
  },
  "luminance": 0.11493
}

Semantic roles & 50–950 ramp

primary

#1F5FAD

secondary

#C89960

accent

#9D3BEC

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#090C13

muted

#7B7D82

Preview Lab

Preview with #1F5FAD

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

Preview Lab → · Contrast checker → · Palette generator →