#017398
Closest named color: Sea Blue (#047495). oklch(52% 0.103 229.5), rgb(1, 115, 152).
Aa
White text reads best on this color (5.37:1).
About this color
#017398 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 52%, its chroma 0.103 and its hue 229°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.006 away. White text reads best on it, at 5.37:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.90:1 |
| White text | 5.37:1 |
Values
| HEX | #017398 |
| RGB | rgb(1, 115, 152) |
| HSL | hsl(195, 99%, 30%) |
| OKLCH | oklch(52% 0.103 229.5) |
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 #017398 | 5.37:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #017398 | 3.90:1 | AA large text | Lc 27.9 | Dividers and decoration only |
| #017398 text on white | 5.37:1 | AA | Lc 76.2 | Fine for body text |
| #017398 text on black | 3.90:1 | AA large text | Lc -25.5 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C7DDE8
oklch(88.5% 0.028 229.2)
-
Step 300
300
#A0C7DB
oklch(80.8% 0.05 230.4)
-
Step 400
400
#6AAAC9
oklch(70.7% 0.08 230.4)
-
Step 500
500
#3A95BB
oklch(63.2% 0.102 229.3)
-
Step 600
600
#007EA7
oklch(55.5% 0.111 230)
-
Step 700
700 (this color)
#017398
oklch(52% 0.103 229.5)
-
Step 800
800
#005774
oklch(42.7% 0.085 229.4)
-
Step 900
900
#11485E
oklch(37.8% 0.066 229.6)
-
Step 950
950
#0D2A37
oklch(27% 0.042 230.5)
#017398 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) | #60719A | 0.071 |
| Deuteranopia (no green cones) | #4E6597 | 0.060 |
| Tritanopia (no blue cones) | #007D7F | 0.058 |
| Achromatopsia (no color) | #6A6A6A | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #017398
#017398
oklch(52% 0.103 229.5)
- #97552E
#97552E
oklch(51.9% 0.102 49.5)
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 #017398, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.006
- Ocean Blue #03719C ΔE 0.010
- Ocean #017B92 ΔE 0.029
- Muted Blue #3B719F ΔE 0.033
- Peacock Blue #016795 ΔE 0.036
- Nice Blue #107AB0 ΔE 0.041
- Flat Blue #3C73A8 ΔE 0.042
- Dull Blue #49759C ΔE 0.045
Use #017398 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.