#277EA1#277EA1

#277EA1 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 55.8% C 0.096 H 229.4°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#277EA1
RGB	rgb(39, 126, 161)
HSL	hsl(197, 61%, 39%)
HSV	hsv(197, 76%, 63%)
CMYK	cmyk(75.8%, 21.7%, 0%, 36.9%)
CIE-LAB	lab(49.40, -13.36, -26.03)
CIE-LCH	lch(49.40, 29.26, 242.84°)
OKLab	oklab(55.81% -0.0626 -0.0731)
OKLCH	oklch(55.81% 0.096 229.4)
XYZ	xyz(14.7280, 17.9245, 36.3949)
Luminance	0.1793 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#277EA1 #A14A27

analogous

#27A187 #277EA1 #2741A1

triadic

#277EA1 #A1277E #7EA127

tetradic

#277EA1 #8727A1 #A14A27 #41A127

square

#277EA1 #8727A1 #A14A27 #41A127

split-complementary

#277EA1 #A12741 #A18727

monochromatic

#0F313E #1B5770 #277EA1 #37A3CE #68BADA

Accessibility & contrast

On white

4.58

#277EA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#277EA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #277EA1

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##277EA1	#FFFFFF	#000000	##000000
##277EA1	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7CA3

Deuteranopia (green-blind)

#5B70A1

Tritanopia (blue-blind)

#00888A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #277ea1;
/* rgb */ color: rgb(39, 126, 161);
/* oklch */ color: oklch(55.8% 0.096 229.4);

Tailwind

colors: {
  custom: {
    50: '#73a3bd',
    500: '#277ea1',
    950: '#000000',
  },
}

SCSS

$custom: #277ea1;
$custom-light: #73a3bd;
$custom-dark: #000000;

JSON

{
  "hex": "#277ea1",
  "rgb": {
    "r": 39,
    "g": 126,
    "b": 161
  },
  "hsl": {
    "h": 197.213,
    "s": 61,
    "l": 39.216
  },
  "oklch": {
    "l": 0.55811,
    "c": 0.09627,
    "h": 229.4
  },
  "luminance": 0.17926
}

Semantic roles & 50–950 ramp

primary

#277EA1

secondary

#C07E63

accent

#7244E4

background

#F7FAFB

surface

#EEF3F6

border

#C9CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #277EA1

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

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