#397778
Closest named color: Deep Aqua (#08787F). oklch(52.9% 0.064 196.8), rgb(57, 119, 120).
Aa
White text reads best on this color (5.14:1).
About this color
#397778 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 53%, its chroma 0.064 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.025 away. White text reads best on it, at 5.14:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 4.08:1 |
| White text | 5.14:1 |
Values
| HEX | #397778 |
| RGB | rgb(57, 119, 120) |
| HSL | hsl(181, 36%, 35%) |
| OKLCH | oklch(52.9% 0.064 196.8) |
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 #397778 | 5.14:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #397778 | 4.08:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #397778 text on white | 5.14:1 | AA | Lc 75.3 | Fine for body text |
| #397778 text on black | 4.08:1 | AA large text | Lc -26.4 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4ECEC
oklch(93.7% 0.009 197)
-
Step 200
200
#CEDDDD
oklch(88.6% 0.016 196.9)
-
Step 300
300
#ACC7C7
oklch(81% 0.029 196.6)
-
Step 400
400
#7FAAAA
oklch(70.7% 0.046 196.2)
-
Step 500
500
#5D9596
oklch(63.2% 0.059 197.2)
-
Step 600
600 (this color)
#397778
oklch(52.9% 0.064 196.8)
-
Step 700
700
#336B6C
oklch(49.1% 0.059 197)
-
Step 800
800
#2B5758
oklch(42.6% 0.049 197.4)
-
Step 900
900
#274848
oklch(37.7% 0.039 195.6)
-
Step 950
950
#182A2A
oklch(26.9% 0.024 195.8)
#397778 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) | #707278 | 0.066 |
| Deuteranopia (no green cones) | #656A78 | 0.061 |
| Tritanopia (no blue cones) | #0C7A77 | 0.025 |
| Achromatopsia (no color) | #6D6D6D | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #397778
#397778
oklch(52.9% 0.064 196.8)
- #8D5C5E
#8D5C5E
oklch(52.9% 0.065 16.8)
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 #397778, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.025
- Bluegreen #017A79 ΔE 0.026
- Teal #008080 ΔE 0.032
- Deep Turquoise #017374 ΔE 0.033
- Dark Aquamarine #017371 ΔE 0.035
- Ocean #017B92 ΔE 0.043
- Metallic Blue #4F738E ΔE 0.048
- Sea Blue #047495 ΔE 0.055
Use #397778 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.