#1C5AB4#1C5AB4

#1C5AB4 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.2% C 0.156 H 258.6°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#1C5AB4
RGB	rgb(28, 90, 180)
HSL	hsl(216, 73%, 41%)
HSV	hsv(216, 84%, 71%)
CMYK	cmyk(84.4%, 50%, 0%, 29.4%)
CIE-LAB	lab(39.33, 14.89, -53.15)
CIE-LCH	lch(39.33, 55.19, 285.65°)
OKLab	oklab(48.17% -0.0309 -0.153)
OKLCH	oklch(48.17% 0.156 258.6)
XYZ	xyz(12.3702, 10.8529, 44.6140)
Luminance	0.1085 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1C5AB4 #B4761C

analogous

#1CA6B4 #1C5AB4 #2A1CB4

triadic

#1C5AB4 #B41C5A #5AB41C

tetradic

#1C5AB4 #B41CA6 #B4761C #1CB42A

square

#1C5AB4 #B41CA6 #B4761C #1CB42A

split-complementary

#1C5AB4 #B42A1C #A6B41C

monochromatic

#0C254A #14407F #1C5AB4 #2F76DF #6499E7

Accessibility & contrast

On white

6.62

#1C5AB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#1C5AB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1C5AB4

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1C5AB4	#FFFFFF	#000000	##FFFFFF
##1C5AB4	1.00	6.62	3.17	6.62
#FFFFFF	6.62	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2264B7

Deuteranopia (green-blind)

#0056B2

Tritanopia (blue-blind)

#00707E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #1c5ab4;
/* rgb */ color: rgb(28, 90, 180);
/* oklch */ color: oklch(48.2% 0.156 258.6);

Tailwind

colors: {
  custom: {
    50: '#7487cb',
    500: '#1c5ab4',
    950: '#000000',
  },
}

SCSS

$custom: #1c5ab4;
$custom-light: #7487cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1c5ab4",
  "rgb": {
    "r": 28,
    "g": 90,
    "b": 180
  },
  "hsl": {
    "h": 215.526,
    "s": 73.077,
    "l": 40.784
  },
  "oklch": {
    "l": 0.48167,
    "c": 0.15614,
    "h": 258.6
  },
  "luminance": 0.10854
}

Semantic roles & 50–950 ramp

primary

#1C5AB4

secondary

#CCA060

accent

#A538F0

background

#F7F8FC

surface

#EEEFF9

border

#C9CAD2

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #1C5AB4

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

Preview Lab → · Contrast checker → · Palette generator →