#017690
Closest named color: Sea Blue (#047495). oklch(52.4% 0.095 220.3), rgb(1, 118, 144).
Aa
White text reads best on this color (5.25:1).
About this color
#017690 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.095 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.011 away. White text reads best on it, at 5.25:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.99:1 |
| White text | 5.25:1 |
Values
| HEX | #017690 |
| RGB | rgb(1, 118, 144) |
| HSL | hsl(191, 99%, 28%) |
| OKLCH | oklch(52.4% 0.095 220.3) |
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 #017690 | 5.25:1 | AA | Lc -80.9 | Fine for body text |
| Black text on #017690 | 3.99:1 | AA large text | Lc 28.5 | Dividers and decoration only |
| #017690 text on white | 5.25:1 | AA | Lc 75.5 | Fine for body text |
| #017690 text on black | 3.99:1 | AA large text | Lc -26.2 | 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 600.
-
Step 50
50
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C9DDE4
oklch(88.5% 0.023 220.8)
-
Step 300
300
#A3C8D4
oklch(81% 0.043 219.5)
-
Step 400
400
#6EABBE
oklch(70.7% 0.069 219.6)
-
Step 500
500
#4396AE
oklch(63.2% 0.087 219.7)
-
Step 600
600 (this color)
#017690
oklch(52.4% 0.095 220.3)
-
Step 700
700
#046C84
oklch(49.2% 0.089 220.5)
-
Step 800
800
#0D586B
oklch(42.7% 0.074 220.3)
-
Step 900
900
#174857
oklch(37.6% 0.057 221.9)
-
Step 950
950
#0F2B33
oklch(27.1% 0.037 219.3)
#017690 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) | #667391 | 0.078 |
| Deuteranopia (no green cones) | #566790 | 0.069 |
| Tritanopia (no blue cones) | #007E7E | 0.044 |
| Achromatopsia (no color) | #6C6C6C | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #017690
#017690
oklch(52.4% 0.095 220.3)
- #98563E
#98563E
oklch(52.5% 0.095 40.6)
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 #017690, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.011
- Ocean #017B92 ΔE 0.015
- Ocean Blue #03719C ΔE 0.028
- Deep Aqua #08787F ΔE 0.030
- Bluegreen #017A79 ΔE 0.043
- Muted Blue #3B719F ΔE 0.043
- Deep Turquoise #017374 ΔE 0.044
- Teal #008080 ΔE 0.046
Use #017690 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.