#217A7D
Closest named color: Deep Aqua (#08787F). oklch(53.1% 0.08 198.4), rgb(33, 122, 125).
Aa
White text reads best on this color (5.06:1).
About this color
#217A7D is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.080 and its hue 198°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.012 away. White text reads best on it, at 5.06:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 4.14:1 |
| White text | 5.06:1 |
Values
| HEX | #217A7D |
| RGB | rgb(33, 122, 125) |
| HSL | hsl(182, 58%, 31%) |
| OKLCH | oklch(53.1% 0.08 198.4) |
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 #217A7D | 5.06:1 | AA | Lc -80.1 | Fine for body text |
| Black text on #217A7D | 4.14:1 | AA large text | Lc 29.4 | Dividers and decoration only |
| #217A7D text on white | 5.06:1 | AA | Lc 74.7 | Content text, not long reading |
| #217A7D text on black | 4.14:1 | AA large text | Lc -27.1 | 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 600.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CBDDDE
oklch(88.4% 0.019 200.8)
-
Step 300
300
#A6C8C9
oklch(80.8% 0.036 198.7)
-
Step 400
400
#75ACAE
oklch(70.7% 0.058 198.8)
-
Step 500
500
#4D979A
oklch(63% 0.074 198.9)
-
Step 600
600 (this color)
#217A7D
oklch(53.1% 0.08 198.4)
-
Step 700
700
#1C6D70
oklch(49% 0.074 198.7)
-
Step 800
800
#1B595B
oklch(42.6% 0.062 198.2)
-
Step 900
900
#1D494B
oklch(37.6% 0.048 199.4)
-
Step 950
950
#132B2C
oklch(27% 0.03 199.1)
#217A7D 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) | #71747D | 0.083 |
| Deuteranopia (no green cones) | #646A7E | 0.078 |
| Tritanopia (no blue cones) | #007E7B | 0.016 |
| Achromatopsia (no color) | #6E6E6E | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #217A7D
#217A7D
oklch(53.1% 0.08 198.4)
- #95585A
#95585A
oklch(53% 0.081 18)
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 #217A7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.012
- Bluegreen #017A79 ΔE 0.013
- Teal #008080 ΔE 0.018
- Deep Turquoise #017374 ΔE 0.028
- Dark Aquamarine #017371 ΔE 0.030
- Ocean #017B92 ΔE 0.033
- Sea Blue #047495 ΔE 0.048
- Dark Cyan #008B8B ΔE 0.050
Use #217A7D 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.