#1F5EAB#1F5EAB

#1F5EAB is a mid, vivid cyan. Relative luminance 0.112; OKLCH L 48.5% C 0.139 H 255.8°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#1F5EAB
RGB	rgb(31, 94, 171)
HSL	hsl(213, 69%, 40%)
HSV	hsv(213, 82%, 67%)
CMYK	cmyk(81.9%, 45%, 0%, 32.9%)
CIE-LAB	lab(39.97, 8.98, -46.80)
CIE-LCH	lch(39.97, 47.66, 280.86°)
OKLab	oklab(48.49% -0.034 -0.1343)
OKLCH	oklch(48.49% 0.139 255.8)
XYZ	xyz(11.9157, 11.2355, 40.0608)
Luminance	0.1124 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F5EAB #AB6C1F

analogous

#1FA4AB #1F5EAB #261FAB

triadic

#1F5EAB #AB1F5E #5EAB1F

tetradic

#1F5EAB #AB1FA4 #AB6C1F #1FAB26

square

#1F5EAB #AB1FA4 #AB6C1F #1FAB26

split-complementary

#1F5EAB #AB261F #A4AB1F

monochromatic

#0C2543 #164277 #1F5EAB #2E7BD9 #629CE3

Accessibility & contrast

On white

6.47

#1F5EAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#1F5EAB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1F5EAB

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F5EAB	#FFFFFF	#000000	##FFFFFF
##1F5EAB	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3665AE

Deuteranopia (green-blind)

#1758A9

Tritanopia (blue-blind)

#00707C

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #1f5eab;
/* rgb */ color: rgb(31, 94, 171);
/* oklch */ color: oklch(48.5% 0.139 255.8);

Tailwind

colors: {
  custom: {
    50: '#728bc4',
    500: '#1f5eab',
    950: '#000000',
  },
}

SCSS

$custom: #1f5eab;
$custom-light: #728bc4;
$custom-dark: #000000;

JSON

{
  "hex": "#1f5eab",
  "rgb": {
    "r": 31,
    "g": 94,
    "b": 171
  },
  "hsl": {
    "h": 213,
    "s": 69.307,
    "l": 39.608
  },
  "oklch": {
    "l": 0.48493,
    "c": 0.13851,
    "h": 255.8
  },
  "luminance": 0.11237
}

Semantic roles & 50–950 ramp

primary

#1F5EAB

secondary

#C7985E

accent

#9D3CEC

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#090B13

muted

#7B7C82

Preview Lab

Preview with #1F5EAB

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

Preview Lab → · Contrast checker → · Palette generator →