#217B6B
Closest named color: Bluegreen (#017A79). oklch(52.7% 0.086 178.2), rgb(33, 123, 107).
Aa
White text reads best on this color (5.10:1).
About this color
#217B6B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.086 and its hue 178°. Its hue sits on the cool side of the wheel. The nearest named color is Bluegreen (#017A79), ΔE 0.024 away. White text reads best on it, at 5.10:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.086) |
| Temperature | cool |
| Nearest name | Bluegreen (#017A79) |
| Black text | 4.11:1 |
| White text | 5.10:1 |
Values
| HEX | #217B6B |
| RGB | rgb(33, 123, 107) |
| HSL | hsl(169, 58%, 31%) |
| OKLCH | oklch(52.7% 0.086 178.2) |
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 #217B6B | 5.10:1 | AA | Lc -80.3 | Fine for body text |
| Black text on #217B6B | 4.11:1 | AA large text | Lc 29.2 | Dividers and decoration only |
| #217B6B text on white | 5.10:1 | AA | Lc 74.9 | Content text, not long reading |
| #217B6B text on black | 4.11:1 | AA large text | Lc -26.8 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2ECEA
oklch(93.5% 0.011 182.9)
-
Step 200
200
#CBDED9
oklch(88.5% 0.021 178.3)
-
Step 300
300
#A7C9C1
oklch(80.9% 0.038 179.4)
-
Step 400
400
#75AEA1
oklch(70.8% 0.063 178.5)
-
Step 500
500
#4E998A
oklch(63% 0.079 179)
-
Step 600
600 (this color)
#217B6B
oklch(52.7% 0.086 178.2)
-
Step 700
700
#1D6F61
oklch(49% 0.08 178.8)
-
Step 800
800
#1C5B4F
oklch(42.8% 0.067 177.9)
-
Step 900
900
#1E4B42
oklch(37.8% 0.052 178.3)
-
Step 950
950
#132C26
oklch(27.1% 0.033 176.2)
#217B6B 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) | #76736A | 0.091 |
| Deuteranopia (no green cones) | #696A6C | 0.086 |
| Tritanopia (no blue cones) | #007D76 | 0.017 |
| Achromatopsia (no color) | #6E6E6E | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #217B6B
#217B6B
oklch(52.7% 0.086 178.2)
- #93556A
#93556A
oklch(52.7% 0.086 358.7)
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 #217B6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluegreen #017A79 ΔE 0.024
- Teal #008080 ΔE 0.031
- Dark Aquamarine #017371 ΔE 0.033
- Deep Turquoise #017374 ΔE 0.035
- Deep Aqua #08787F ΔE 0.036
- Dark Cyan #008B8B ΔE 0.058
- Dark Aqua #05696B ΔE 0.061
- Ocean #017B92 ΔE 0.062
Use #217B6B 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.