#2B717E
Closest named color: Deep Aqua (#08787F). oklch(51% 0.072 211.9), rgb(43, 113, 126).
Aa
White text reads best on this color (5.57:1).
About this color
#2B717E is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 51%, its chroma 0.072 and its hue 212°. 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 5.57:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 3.76:1 |
| White text | 5.57:1 |
Values
| HEX | #2B717E |
| RGB | rgb(43, 113, 126) |
| HSL | hsl(189, 49%, 33%) |
| OKLCH | oklch(51% 0.072 211.9) |
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 #2B717E | 5.57:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #2B717E | 3.76:1 | AA large text | Lc 26.4 | Dividers and decoration only |
| #2B717E text on white | 5.57:1 | AA | Lc 77.6 | Fine for body text |
| #2B717E text on black | 3.76:1 | AA large text | Lc -24.1 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECEE
oklch(93.7% 0.01 212.5)
-
Step 200
200
#CBDDE0
oklch(88.5% 0.02 208.8)
-
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
#5295A2
oklch(63.1% 0.071 211.6)
-
Step 600
600
#337F8D
oklch(55.5% 0.077 211.7)
-
Step 700
700 (this color)
#2B717E
oklch(51% 0.072 211.9)
-
Step 800
800
#205862
oklch(42.8% 0.06 211.3)
-
Step 900
900
#214850
oklch(37.7% 0.046 212.7)
-
Step 950
950
#142A2F
oklch(26.9% 0.029 214)
#2B717E 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) | #676D7F | 0.067 |
| Deuteranopia (no green cones) | #5B647E | 0.061 |
| Tritanopia (no blue cones) | #007675 | 0.030 |
| Achromatopsia (no color) | #686868 | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B717E
#2B717E
oklch(51% 0.072 211.9)
- #8A564C
#8A564C
oklch(50.9% 0.072 31.5)
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 #2B717E, 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 0.027
- Dark Aquamarine #017371 ΔE 0.031
- Bluegreen #017A79 ΔE 0.034
- Sea Blue #047495 ΔE 0.037
- Ocean #017B92 ΔE 0.037
- Dark Aqua #05696B ΔE 0.043
- Metallic Blue #4F738E ΔE 0.046
Use #2B717E 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.