#1F5FA0#1F5FA0

#1F5FA0 is a mid, vivid cyan. Relative luminance 0.110; OKLCH L 48.0% C 0.123 H 252.3°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#1F5FA0
RGB	rgb(31, 95, 160)
HSL	hsl(210, 68%, 37%)
HSV	hsv(210, 81%, 63%)
CMYK	cmyk(80.6%, 40.6%, 0%, 37.3%)
CIE-LAB	lab(39.60, 4.00, -40.87)
CIE-LCH	lch(39.60, 41.07, 275.59°)
OKLab	oklab(47.99% -0.0373 -0.1168)
OKLCH	oklch(47.99% 0.123 252.3)
XYZ	xyz(11.0001, 11.0125, 34.7968)
Luminance	0.1101 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5FA0 #A0601F

analogous

#1F9FA0 #1F5FA0 #201FA0

triadic

#1F5FA0 #A01F5F #5FA01F

tetradic

#1F5FA0 #A01F9F #A0601F #1FA020

square

#1F5FA0 #A01F9F #A0601F #1FA020

split-complementary

#1F5FA0 #A0201F #9FA01F

monochromatic

#0B2239 #15416D #1F5FA0 #297DD3 #5A9CDF

Accessibility & contrast

On white

6.56

#1F5FA0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#1F5FA0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F5FA0

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5FA0	#FFFFFF	#000000	##FFFFFF
##1F5FA0	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4064A3

Deuteranopia (green-blind)

#2A589F

Tritanopia (blue-blind)

#006E77

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #1f5fa0;
/* rgb */ color: rgb(31, 95, 160);
/* oklch */ color: oklch(48.0% 0.123 252.3);

Tailwind

colors: {
  custom: {
    50: '#708bbc',
    500: '#1f5fa0',
    950: '#000000',
  },
}

SCSS

$custom: #1f5fa0;
$custom-light: #708bbc;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5fa0",
  "rgb": {
    "r": 31,
    "g": 95,
    "b": 160
  },
  "hsl": {
    "h": 210.233,
    "s": 67.539,
    "l": 37.451
  },
  "oklch": {
    "l": 0.47986,
    "c": 0.12262,
    "h": 252.3
  },
  "luminance": 0.11014
}

Semantic roles & 50–950 ramp

primary

#1F5FA0

secondary

#C38E58

accent

#953DEA

background

#F7F8FB

surface

#EDF0F6

border

#C8CBD0

text

#090C12

muted

#7B7D81

Preview Lab

Preview with #1F5FA0

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

Preview Lab → · Contrast checker → · Palette generator →