#1F5EB3#1F5EB3

#1F5EB3 is a mid, vivid cyan. Relative luminance 0.116; OKLCH L 49.1% C 0.149 H 257.4°. Best body text is #FFFFFF at 6.34:1 contrast (WCAG AA passes).

Color values

HEX	#1F5EB3
RGB	rgb(31, 94, 179)
HSL	hsl(214, 70%, 41%)
HSV	hsv(214, 83%, 70%)
CMYK	cmyk(82.7%, 47.5%, 0%, 29.8%)
CIE-LAB	lab(40.49, 12.13, -50.69)
CIE-LCH	lch(40.49, 52.12, 283.46°)
OKLab	oklab(49.06% -0.0325 -0.1457)
OKLCH	oklch(49.06% 0.149 257.4)
XYZ	xyz(12.7015, 11.5498, 44.1990)
Luminance	0.1155 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5EB3 #B3741F

analogous

#1FA8B3 #1F5EB3 #2A1FB3

triadic

#1F5EB3 #B31F5E #5EB31F

tetradic

#1F5EB3 #B31FA8 #B3741F #1FB32A

square

#1F5EB3 #B31FA8 #B3741F #1FB32A

split-complementary

#1F5EB3 #B32A1F #A8B31F

monochromatic

#0D274B #16437F #1F5EB3 #337BDC #689DE5

Accessibility & contrast

On white

6.34

#1F5EB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#1F5EB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F5EB3

6.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5EB3	#FFFFFF	#000000	##FFFFFF
##1F5EB3	1.00	6.34	3.31	6.34
#FFFFFF	6.34	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E67B6

Deuteranopia (green-blind)

#0059B1

Tritanopia (blue-blind)

#007280

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #1f5eb3;
/* rgb */ color: rgb(31, 94, 179);
/* oklch */ color: oklch(49.1% 0.149 257.4);

Tailwind

colors: {
  custom: {
    50: '#748bca',
    500: '#1f5eb3',
    950: '#000000',
  },
}

SCSS

$custom: #1f5eb3;
$custom-light: #748bca;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5eb3",
  "rgb": {
    "r": 31,
    "g": 94,
    "b": 179
  },
  "hsl": {
    "h": 214.459,
    "s": 70.476,
    "l": 41.176
  },
  "oklch": {
    "l": 0.49059,
    "c": 0.14927,
    "h": 257.4
  },
  "luminance": 0.11551
}

Semantic roles & 50–950 ramp

primary

#1F5EB3

secondary

#CA9F64

accent

#A13BED

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #1F5EB3

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

Preview Lab → · Contrast checker → · Palette generator →