#2D728D
Closest named color: Sea Blue (#047495). oklch(52% 0.08 227.3), rgb(45, 114, 141).
Aa
White text reads best on this color (5.38:1).
About this color
#2D728D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.080 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.019 away. White text reads best on it, at 5.38:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.90:1 |
| White text | 5.38:1 |
Values
| HEX | #2D728D |
| RGB | rgb(45, 114, 141) |
| HSL | hsl(197, 52%, 36%) |
| OKLCH | oklch(52% 0.08 227.3) |
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 #2D728D | 5.38:1 | AA | Lc -81.9 | Fine for body text |
| Black text on #2D728D | 3.90:1 | AA large text | Lc 27.5 | Dividers and decoration only |
| #2D728D text on white | 5.38:1 | AA | Lc 76.6 | Fine for body text |
| #2D728D text on black | 3.90:1 | 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
#CBDCE4
oklch(88.4% 0.021 227.6)
-
Step 300
300
#A7C6D4
oklch(80.8% 0.039 226.9)
-
Step 400
400
#77A9BF
oklch(70.7% 0.062 227.2)
-
Step 500
500
#5193AF
oklch(63.1% 0.079 227.6)
-
Step 600
600
#317D9B
oklch(55.6% 0.087 227.7)
-
Step 700
700 (this color)
#2D728D
oklch(52% 0.08 227.3)
-
Step 800
800
#1F566B
oklch(42.7% 0.066 226.9)
-
Step 900
900
#204757
oklch(37.7% 0.052 227.4)
-
Step 950
950
#142A33
oklch(27.1% 0.033 226.5)
#2D728D 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) | #64708E | 0.060 |
| Deuteranopia (no green cones) | #56668D | 0.052 |
| Tritanopia (no blue cones) | #007A7B | 0.047 |
| Achromatopsia (no color) | #6A6A6A | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D728D
#2D728D
oklch(52% 0.08 227.3)
- #8F5A3F
#8F5A3F
oklch(52% 0.081 47.4)
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 #2D728D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.019
- Ocean #017B92 ΔE 0.028
- Ocean Blue #03719C ΔE 0.029
- Metallic Blue #4F738E ΔE 0.033
- Muted Blue #3B719F ΔE 0.033
- Deep Aqua #08787F ΔE 0.037
- Dull Blue #49759C ΔE 0.038
- Cerulean #457B9D ΔE 0.042
Use #2D728D 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.