#1A5BB3#1A5BB3

#1A5BB3 is a mid, vivid cyan. Relative luminance 0.110; OKLCH L 48.3% C 0.154 H 257.7°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#1A5BB3
RGB	rgb(26, 91, 179)
HSL	hsl(215, 75%, 40%)
HSV	hsv(215, 85%, 70%)
CMYK	cmyk(85.5%, 49.2%, 0%, 29.8%)
CIE-LAB	lab(39.50, 13.67, -52.28)
CIE-LCH	lch(39.50, 54.04, 284.65°)
OKLab	oklab(48.27% -0.0328 -0.1505)
OKLCH	oklch(48.27% 0.154 257.7)
XYZ	xyz(12.3008, 10.9549, 44.1053)
Luminance	0.1096 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A5BB3 #B3721A

analogous

#1AA7B3 #1A5BB3 #261AB3

triadic

#1A5BB3 #B31A5B #5BB31A

tetradic

#1A5BB3 #B31AA7 #B3721A #1AB326

square

#1A5BB3 #B31AA7 #B3721A #1AB326

split-complementary

#1A5BB3 #B3261A #A7B31A

monochromatic

#0A2548 #12407E #1A5BB3 #2A77E0 #6099E8

Accessibility & contrast

On white

6.58

#1A5BB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#1A5BB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #1A5BB3

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A5BB3	#FFFFFF	#000000	##FFFFFF
##1A5BB3	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2664B6

Deuteranopia (green-blind)

#0057B1

Tritanopia (blue-blind)

#00707E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #1a5bb3;
/* rgb */ color: rgb(26, 91, 179);
/* oklch */ color: oklch(48.3% 0.154 257.7);

Tailwind

colors: {
  custom: {
    50: '#7388ca',
    500: '#1a5bb3',
    950: '#000000',
  },
}

SCSS

$custom: #1a5bb3;
$custom-light: #7388ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1a5bb3",
  "rgb": {
    "r": 26,
    "g": 91,
    "b": 179
  },
  "hsl": {
    "h": 214.51,
    "s": 74.634,
    "l": 40.196
  },
  "oklch": {
    "l": 0.48265,
    "c": 0.15403,
    "h": 257.7
  },
  "luminance": 0.10956
}

Semantic roles & 50–950 ramp

primary

#1A5BB3

secondary

#CC9D5D

accent

#A237F1

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #1A5BB3

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

Preview Lab → · Contrast checker → · Palette generator →