#09729F
Closest named color: Ocean Blue (#03719C). oklch(52.2% 0.109 235.4), rgb(9, 114, 159).
Aa
White text reads best on this color (5.35:1).
About this color
#09729F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.109 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Blue (#03719C), ΔE 0.006 away. White text reads best on it, at 5.35:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Ocean Blue (#03719C) |
| Black text | 3.91:1 |
| White text | 5.35:1 |
Values
| HEX | #09729F |
| RGB | rgb(9, 114, 159) |
| HSL | hsl(198, 89%, 33%) |
| OKLCH | oklch(52.2% 0.109 235.4) |
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 #09729F | 5.35:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #09729F | 3.91:1 | AA large text | Lc 27.9 | Dividers and decoration only |
| #09729F text on white | 5.35:1 | AA | Lc 76.2 | Fine for body text |
| #09729F text on black | 3.91:1 | AA large text | Lc -25.6 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1ECF3
oklch(93.7% 0.015 235.4)
-
Step 200
200
#C8DDEA
oklch(88.6% 0.029 234.9)
-
Step 300
300
#A0C7DE
oklch(80.9% 0.053 234.2)
-
Step 400
400
#6AA9CE
oklch(70.6% 0.085 235.5)
-
Step 500
500
#3C93C1
oklch(63.1% 0.107 235.3)
-
Step 600
600
#067DAE
oklch(55.7% 0.117 235.2)
-
Step 700
700 (this color)
#09729F
oklch(52.2% 0.109 235.4)
-
Step 800
800
#025679
oklch(42.8% 0.09 234.9)
-
Step 900
900
#124762
oklch(37.8% 0.071 235.8)
-
Step 950
950
#0D2A39
oklch(27.1% 0.044 234.3)
#09729F 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) | #5C72A1 | 0.065 |
| Deuteranopia (no green cones) | #49659E | 0.052 |
| Tritanopia (no blue cones) | #007E82 | 0.067 |
| Achromatopsia (no color) | #6B6B6B | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #09729F
#09729F
oklch(52.2% 0.109 235.4)
- #985622
#985622
oklch(52.1% 0.109 55.2)
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 #09729F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Blue #03719C ΔE 0.006
- Sea Blue #047495 ΔE 0.019
- Muted Blue #3B719F ΔE 0.027
- Nice Blue #107AB0 ΔE 0.033
- Flat Blue #3C73A8 ΔE 0.034
- Peacock Blue #016795 ΔE 0.034
- Ocean #017B92 ΔE 0.039
- Dull Blue #49759C ΔE 0.044
Use #09729F 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.