#01759B
Closest named color: Sea Blue (#047495). oklch(52.7% 0.104 229.8), rgb(1, 117, 155).
Aa
White text reads best on this color (5.22:1).
About this color
#01759B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.104 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.009 away. White text reads best on it, at 5.22:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 4.01:1 |
| White text | 5.22:1 |
Values
| HEX | #01759B |
| RGB | rgb(1, 117, 155) |
| HSL | hsl(195, 99%, 31%) |
| OKLCH | oklch(52.7% 0.104 229.8) |
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 #01759B | 5.22:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #01759B | 4.01:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #01759B text on white | 5.22:1 | AA | Lc 75.3 | Fine for body text |
| #01759B text on black | 4.01:1 | AA large text | Lc -26.4 | 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
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C8DDE7
oklch(88.5% 0.026 227.9)
-
Step 300
300
#A2C7D9
oklch(80.9% 0.047 229)
-
Step 400
400
#6EAAC7
oklch(70.8% 0.075 230.1)
-
Step 500
500
#4294B8
oklch(63.1% 0.096 229.8)
-
Step 600
600 (this color)
#01759B
oklch(52.7% 0.104 229.8)
-
Step 700
700
#026A8D
oklch(49.1% 0.097 230)
-
Step 800
800
#0C5772
oklch(42.8% 0.08 229)
-
Step 900
900
#16485C
oklch(37.8% 0.062 228.6)
-
Step 950
950
#0F2A36
oklch(27% 0.04 229.8)
#01759B 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) | #61739D | 0.071 |
| Deuteranopia (no green cones) | #4F679A | 0.060 |
| Tritanopia (no blue cones) | #007F82 | 0.057 |
| Achromatopsia (no color) | #6C6C6C | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #01759B
#01759B
oklch(52.7% 0.104 229.8)
- #9A572E
#9A572E
oklch(52.7% 0.104 50.3)
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 #01759B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.009
- Ocean Blue #03719C ΔE 0.013
- Ocean #017B92 ΔE 0.026
- Muted Blue #3B719F ΔE 0.031
- Nice Blue #107AB0 ΔE 0.035
- Flat Blue #3C73A8 ΔE 0.039
- Peacock Blue #016795 ΔE 0.042
- Dull Blue #49759C ΔE 0.042
Use #01759B 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.