#2C728F
Closest named color: Sea Blue (#047495). oklch(52.1% 0.083 228.9), rgb(44, 114, 143).
Aa
White text reads best on this color (5.36:1).
About this color
#2C728F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.083 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.017 away. White text reads best on it, at 5.36:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.91:1 |
| White text | 5.36:1 |
Values
| HEX | #2C728F |
| RGB | rgb(44, 114, 143) |
| HSL | hsl(198, 53%, 37%) |
| OKLCH | oklch(52.1% 0.083 228.9) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #2C728F | 5.36:1 | AA | Lc -81.8 | Fine for body text |
| Black text on #2C728F | 3.91:1 | AA large text | Lc 27.6 | Dividers and decoration only |
| #2C728F text on white | 5.36:1 | AA | Lc 76.5 | Fine for body text |
| #2C728F text on black | 3.91:1 | AA large text | Lc -25.2 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2EBF0
oklch(93.5% 0.012 231.7)
-
Step 200
200
#CBDCE5
oklch(88.4% 0.022 230.6)
-
Step 300
300
#A7C6D5
oklch(80.9% 0.04 228.7)
-
Step 400
400
#76A9C1
oklch(70.8% 0.064 228.9)
-
Step 500
500
#5093B1
oklch(63.1% 0.082 229.1)
-
Step 600
600
#307D9D
oklch(55.6% 0.089 229.1)
-
Step 700
700 (this color)
#2C728F
oklch(52.1% 0.083 228.9)
-
Step 800
800
#1E566D
oklch(42.7% 0.069 228.9)
-
Step 900
900
#1F4758
oklch(37.7% 0.053 228.4)
-
Step 950
950
#132A34
oklch(27.1% 0.034 228.3)
#2C728F with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #637090 | 0.059 |
| Deuteranopia (no green cones) | #55668F | 0.051 |
| Tritanopia (no blue cones) | #007A7C | 0.048 |
| Achromatopsia (no color) | #6A6A6A | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C728F
#2C728F
oklch(52.1% 0.083 228.9)
- #905A3D
#905A3D
oklch(52.1% 0.083 48.5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #2C728F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.017
- Ocean Blue #03719C ΔE 0.026
- Ocean #017B92 ΔE 0.028
- Muted Blue #3B719F ΔE 0.031
- Metallic Blue #4F738E ΔE 0.034
- Dull Blue #49759C ΔE 0.036
- Deep Aqua #08787F ΔE 0.040
- Cerulean #457B9D ΔE 0.041
Use #2C728F in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.