#2B717F
Closest named color: Deep Aqua (#08787F). oklch(51.1% 0.072 213.2), rgb(43, 113, 127).
Aa
White text reads best on this color (5.56:1).
About this color
#2B717F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 51%, its chroma 0.072 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.024 away. White text reads best on it, at 5.56:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 3.77:1 |
| White text | 5.56:1 |
Values
| HEX | #2B717F |
| RGB | rgb(43, 113, 127) |
| HSL | hsl(190, 49%, 33%) |
| OKLCH | oklch(51.1% 0.072 213.2) |
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 #2B717F | 5.56:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #2B717F | 3.77:1 | AA large text | Lc 26.5 | Dividers and decoration only |
| #2B717F text on white | 5.56:1 | AA | Lc 77.6 | Fine for body text |
| #2B717F text on black | 3.77:1 | AA large text | Lc -24.2 | 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 700.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECEE
oklch(93.7% 0.01 212.5)
-
Step 200
200
#CBDDE1
oklch(88.5% 0.02 212.6)
-
Step 300
300
#A8C7CE
oklch(80.9% 0.035 212.9)
-
Step 400
400
#78AAB5
oklch(70.7% 0.055 212.8)
-
Step 500
500
#5295A3
oklch(63.1% 0.071 212.7)
-
Step 600
600
#337F8E
oklch(55.6% 0.077 212.8)
-
Step 700
700 (this color)
#2B717F
oklch(51.1% 0.072 213.2)
-
Step 800
800
#205763
oklch(42.6% 0.06 214.6)
-
Step 900
900
#214850
oklch(37.7% 0.046 212.7)
-
Step 950
950
#142A2F
oklch(26.9% 0.029 214)
#2B717F 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) | #666D80 | 0.066 |
| Deuteranopia (no green cones) | #5A647F | 0.060 |
| Tritanopia (no blue cones) | #007775 | 0.033 |
| Achromatopsia (no color) | #686868 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B717F
#2B717F
oklch(51.1% 0.072 213.2)
- #8B574B
#8B574B
oklch(51.2% 0.072 33.7)
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 #2B717F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.024
- Deep Turquoise #017374 ΔE 0.028
- Dark Aquamarine #017371 ΔE 0.032
- Bluegreen #017A79 ΔE 0.035
- Sea Blue #047495 ΔE 0.035
- Ocean #017B92 ΔE 0.036
- Dark Aqua #05696B ΔE 0.044
- Metallic Blue #4F738E ΔE 0.045
Use #2B717F 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.