#09759F
Closest named color: Ocean Blue (#03719C). oklch(52.9% 0.107 232.9), rgb(9, 117, 159).
Aa
White text reads best on this color (5.17:1).
About this color
#09759F is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.107 and its hue 233°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean Blue (#03719C), ΔE 0.012 away. White text reads best on it, at 5.17:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Ocean Blue (#03719C) |
| Black text | 4.05:1 |
| White text | 5.17:1 |
Values
| HEX | #09759F |
| RGB | rgb(9, 117, 159) |
| HSL | hsl(197, 89%, 33%) |
| OKLCH | oklch(52.9% 0.107 232.9) |
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 #09759F | 5.17:1 | AA | Lc -80.5 | Fine for body text |
| Black text on #09759F | 4.05:1 | AA large text | Lc 29.0 | Dividers and decoration only |
| #09759F text on white | 5.17:1 | AA | Lc 75.1 | Fine for body text |
| #09759F text on black | 4.05:1 | AA large text | Lc -26.6 | 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 600.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C9DDE8
oklch(88.6% 0.026 231.7)
-
Step 300
300
#A3C7DB
oklch(81% 0.048 232.5)
-
Step 400
400
#6EA9C9
oklch(70.6% 0.077 233.1)
-
Step 500
500
#4393BB
oklch(63% 0.098 233.1)
-
Step 600
600 (this color)
#09759F
oklch(52.9% 0.107 232.9)
-
Step 700
700
#066990
oklch(49.1% 0.1 233.4)
-
Step 800
800
#0E5675
oklch(42.7% 0.083 233.2)
-
Step 900
900
#17475E
oklch(37.7% 0.064 233.1)
-
Step 950
950
#0F2A37
oklch(27.1% 0.041 231.9)
#09759F 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) | #6074A1 | 0.068 |
| Deuteranopia (no green cones) | #4D679E | 0.057 |
| Tritanopia (no blue cones) | #008083 | 0.064 |
| Achromatopsia (no color) | #6D6D6D | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #09759F
#09759F
oklch(52.9% 0.107 232.9)
- #9B5829
#9B5829
oklch(52.9% 0.107 53)
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 #09759F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Blue #03719C ΔE 0.012
- Sea Blue #047495 ΔE 0.016
- Muted Blue #3B719F ΔE 0.028
- Nice Blue #107AB0 ΔE 0.029
- Ocean #017B92 ΔE 0.031
- Flat Blue #3C73A8 ΔE 0.033
- Dull Blue #49759C ΔE 0.040
- Cerulean #457B9D ΔE 0.043
Use #09759F 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.