#177B94
Closest named color: Ocean (#017B92). oklch(54.1% 0.093 219.9), rgb(23, 123, 148).
Aa
White text reads best on this color (4.88:1).
About this color
#177B94 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.093 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.007 away. White text reads best on it, at 4.88:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.093) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.29:1 |
| White text | 4.88:1 |
Values
| HEX | #177B94 |
| RGB | rgb(23, 123, 148) |
| HSL | hsl(192, 73%, 34%) |
| OKLCH | oklch(54.1% 0.093 219.9) |
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 #177B94 | 4.88:1 | AA | Lc -78.9 | Fine for body text |
| Black text on #177B94 | 4.29:1 | AA large text | Lc 30.6 | Non-text elements, placeholder text |
| #177B94 text on white | 4.88:1 | AA | Lc 73.5 | Content text, not long reading |
| #177B94 text on black | 4.29:1 | AA large text | Lc -28.2 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#C9DDE4
oklch(88.5% 0.023 220.8)
-
Step 300
300
#A4C7D3
oklch(80.8% 0.041 220.6)
-
Step 400
400
#70ABBD
oklch(70.7% 0.067 219.1)
-
Step 500
500
#4696AD
oklch(63.2% 0.085 219.4)
-
Step 600
600 (this color)
#177B94
oklch(54.1% 0.093 219.9)
-
Step 700
700
#0D6C82
oklch(49.2% 0.086 219.2)
-
Step 800
800
#12586A
oklch(42.8% 0.071 219.8)
-
Step 900
900
#194856
oklch(37.6% 0.055 220.9)
-
Step 950
950
#102A32
oklch(26.8% 0.035 220.6)
#177B94 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) | #6C7795 | 0.077 |
| Deuteranopia (no green cones) | #5C6C94 | 0.069 |
| Tritanopia (no blue cones) | #008383 | 0.042 |
| Achromatopsia (no color) | #717171 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #177B94
#177B94
oklch(54.1% 0.093 219.9)
- #9C5B44
#9C5B44
oklch(54% 0.093 40.1)
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 #177B94, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.007
- Sea Blue #047495 ΔE 0.024
- Deep Aqua #08787F ΔE 0.034
- Cerulean #457B9D ΔE 0.036
- Ocean Blue #03719C ΔE 0.037
- Teal Blue #01889F ΔE 0.038
- Teal #008080 ΔE 0.040
- Dull Blue #49759C ΔE 0.042
Use #177B94 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.