#17667C
Closest named color: Dark Aqua (#05696B). oklch(47.5% 0.08 221.5), rgb(23, 102, 124).
Aa
White text reads best on this color (6.50:1).
About this color
#17667C is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 48%, its chroma 0.080 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.034 away. White text reads best on it, at 6.50:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.22:1 |
| White text | 6.50:1 |
Values
| HEX | #17667C |
| RGB | rgb(23, 102, 124) |
| HSL | hsl(193, 69%, 29%) |
| OKLCH | oklch(47.5% 0.08 221.5) |
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 #17667C | 6.50:1 | AA | Lc -87.0 | Fine for body text |
| Black text on #17667C | 3.22:1 | AA large text | Lc 22.1 | Dividers and decoration only |
| #17667C text on white | 6.50:1 | AA | Lc 81.9 | Fine for body text |
| #17667C text on black | 3.22:1 | AA large text | Lc -20.0 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CBDDE3
oklch(88.6% 0.021 219.7)
-
Step 300
300
#A6C7D2
oklch(80.9% 0.039 220)
-
Step 400
400
#75AABC
oklch(70.7% 0.062 221.2)
-
Step 500
500
#4E94AB
oklch(63% 0.078 221.7)
-
Step 600
600
#2C7E97
oklch(55.5% 0.086 222)
-
Step 700
700 (this color)
#17667C
oklch(47.5% 0.08 221.5)
-
Step 800
800
#1C5769
oklch(42.7% 0.066 222)
-
Step 900
900
#1E4855
oklch(37.8% 0.051 221)
-
Step 950
950
#132A32
oklch(27% 0.033 222.8)
#17667C 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) | #59637D | 0.065 |
| Deuteranopia (no green cones) | #4C5A7C | 0.057 |
| Tritanopia (no blue cones) | #006D6D | 0.039 |
| Achromatopsia (no color) | #5E5E5E | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17667C
#17667C
oklch(47.5% 0.08 221.5)
- #824C38
#824C38
oklch(47.5% 0.08 40.9)
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 #17667C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.034
- Petrol #005F6A ΔE 0.036
- Peacock Blue #016795 ΔE 0.040
- Denim #3B638C ΔE 0.042
- YInMn Blue #415A77 ΔE 0.046
- Deep Turquoise #017374 ΔE 0.047
- Light Navy Blue #2E5A88 ΔE 0.048
- Dark Aquamarine #017371 ΔE 0.050
Use #17667C 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.