#017789
Closest named color: Ocean (#017B92). oklch(52.3% 0.091 213), rgb(1, 119, 137).
Aa
White text reads best on this color (5.24:1).
About this color
#017789 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.091 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.017 away. White text reads best on it, at 5.24:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.00:1 |
| White text | 5.24:1 |
Values
| HEX | #017789 |
| RGB | rgb(1, 119, 137) |
| HSL | hsl(188, 99%, 27%) |
| OKLCH | oklch(52.3% 0.091 213) |
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 #017789 | 5.24:1 | AA | Lc -80.9 | Fine for body text |
| Black text on #017789 | 4.00:1 | AA large text | Lc 28.6 | Dividers and decoration only |
| #017789 text on white | 5.24:1 | AA | Lc 75.5 | Fine for body text |
| #017789 text on black | 4.00:1 | 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 700.
-
Step 50
50
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C8DEE3
oklch(88.6% 0.024 212.9)
-
Step 300
300
#A1C9D2
oklch(81% 0.044 212.9)
-
Step 400
400
#6AADBB
oklch(70.8% 0.071 212.4)
-
Step 500
500
#3A98AA
oklch(63.2% 0.091 212.6)
-
Step 600
600
#008295
oklch(55.7% 0.097 212.5)
-
Step 700
700 (this color)
#017789
oklch(52.3% 0.091 213)
-
Step 800
800
#005967
oklch(42.6% 0.075 213)
-
Step 900
900
#104A54
oklch(37.8% 0.059 211.9)
-
Step 950
950
#0D2B31
oklch(27% 0.037 212.9)
#017789 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) | #6A738A | 0.083 |
| Deuteranopia (no green cones) | #5A6789 | 0.075 |
| Tritanopia (no blue cones) | #007E7D | 0.033 |
| Achromatopsia (no color) | #6C6C6C | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #017789
#017789
oklch(52.3% 0.091 213)
- #975547
#975547
oklch(52.3% 0.091 32.9)
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 #017789, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.017
- Deep Aqua #08787F ΔE 0.017
- Sea Blue #047495 ΔE 0.024
- Bluegreen #017A79 ΔE 0.030
- Deep Turquoise #017374 ΔE 0.033
- Teal #008080 ΔE 0.035
- Dark Aquamarine #017371 ΔE 0.038
- Ocean Blue #03719C ΔE 0.040
Use #017789 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.