#17675B
Closest named color: Dark Green Blue (#1F6357). oklch(46.4% 0.076 180.3), rgb(23, 103, 91).
Aa
White text reads best on this color (6.71:1).
About this color
#17675B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 46%, its chroma 0.076 and its hue 180°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.012 away. White text reads best on it, at 6.71:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.12:1 |
| White text | 6.71:1 |
Values
| HEX | #17675B |
| RGB | rgb(23, 103, 91) |
| HSL | hsl(171, 63%, 25%) |
| OKLCH | oklch(46.4% 0.076 180.3) |
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 #17675B | 6.71:1 | AA | Lc -87.8 | Fine for body text |
| Black text on #17675B | 3.12:1 | AA large text | Lc 21.3 | Dividers and decoration only |
| #17675B text on white | 6.71:1 | AA | Lc 82.8 | Fine for body text |
| #17675B text on black | 3.12:1 | AA large text | Lc -19.1 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CBDEDA
oklch(88.5% 0.021 181.8)
-
Step 300
300
#A8C9C1
oklch(80.9% 0.037 179)
-
Step 400
400
#77ADA2
oklch(70.7% 0.059 180.4)
-
Step 500
500
#51998B
oklch(63.2% 0.076 179.6)
-
Step 600
600
#308375
oklch(55.6% 0.083 180)
-
Step 700
700 (this color)
#17675B
oklch(46.4% 0.076 180.3)
-
Step 800
800
#1F5A50
oklch(42.6% 0.063 180)
-
Step 900
900
#204A43
oklch(37.7% 0.049 181.2)
-
Step 950
950
#142B27
oklch(26.9% 0.03 181.4)
#17675B 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) | #62605B | 0.081 |
| Deuteranopia (no green cones) | #57585C | 0.077 |
| Tritanopia (no blue cones) | #006963 | 0.013 |
| Achromatopsia (no color) | #5C5C5C | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17675B
#17675B
oklch(46.4% 0.076 180.3)
- #7C4657
#7C4657
oklch(46.4% 0.077 0.3)
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 #17675B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.012
- Dark Aqua #05696B ΔE 0.025
- Petrol #005F6A ΔE 0.042
- Dark Aquamarine #017371 ΔE 0.043
- Deep Turquoise #017374 ΔE 0.046
- Spruce #0A5F38 ΔE 0.055
- Pine #2B5D34 ΔE 0.056
- Deep Teal #00555A ΔE 0.062
Use #17675B 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.