#0179A1
Closest named color: Sea Blue (#047495). oklch(54% 0.108 230.3), rgb(1, 121, 161).
Aa
White text reads best on this color (4.94:1).
About this color
#0179A1 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.108 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.022 away. White text reads best on it, at 4.94:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 4.25:1 |
| White text | 4.94:1 |
Values
| HEX | #0179A1 |
| RGB | rgb(1, 121, 161) |
| HSL | hsl(195, 99%, 32%) |
| OKLCH | oklch(54% 0.108 230.3) |
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 #0179A1 | 4.94:1 | AA | Lc -79.0 | Fine for body text |
| Black text on #0179A1 | 4.25:1 | AA large text | Lc 30.5 | Non-text elements, placeholder text |
| #0179A1 text on white | 4.94:1 | AA | Lc 73.6 | Content text, not long reading |
| #0179A1 text on black | 4.25:1 | AA large text | Lc -28.1 | 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
#C8DDE8
oklch(88.5% 0.027 230.4)
-
Step 300
300
#A1C7DA
oklch(80.8% 0.049 229.7)
-
Step 400
400
#6CAAC8
oklch(70.7% 0.078 230.2)
-
Step 500
500
#3F94BA
oklch(63.1% 0.099 230.6)
-
Step 600
600 (this color)
#0179A1
oklch(54% 0.108 230.3)
-
Step 700
700
#006A8E
oklch(49.1% 0.099 230.6)
-
Step 800
800
#075774
oklch(42.8% 0.083 230.2)
-
Step 900
900
#14485D
oklch(37.8% 0.064 229.2)
-
Step 950
950
#0E2A37
oklch(27% 0.041 231.2)
#0179A1 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) | #6477A3 | 0.072 |
| Deuteranopia (no green cones) | #526AA0 | 0.063 |
| Tritanopia (no blue cones) | #008487 | 0.061 |
| Achromatopsia (no color) | #707070 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0179A1
#0179A1
oklch(54% 0.108 230.3)
- #9F5A2F
#9F5A2F
oklch(53.9% 0.107 50.6)
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 #0179A1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.022
- Ocean Blue #03719C ΔE 0.024
- Nice Blue #107AB0 ΔE 0.024
- Ocean #017B92 ΔE 0.027
- Muted Blue #3B719F ΔE 0.033
- Flat Blue #3C73A8 ΔE 0.035
- Cerulean #457B9D ΔE 0.038
- Dull Blue #49759C ΔE 0.040
Use #0179A1 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.