#00778F
Closest named color: Ocean (#017B92). oklch(52.6% 0.095 218.4), rgb(0, 119, 143).
Aa
White text reads best on this color (5.20:1).
About this color
#00778F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.095 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.012 away. White text reads best on it, at 5.20:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.095) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.03:1 |
| White text | 5.20:1 |
Values
| HEX | #00778F |
| RGB | rgb(0, 119, 143) |
| HSL | hsl(190, 100%, 28%) |
| OKLCH | oklch(52.6% 0.095 218.4) |
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 #00778F | 5.20:1 | AA | Lc -80.6 | Fine for body text |
| Black text on #00778F | 4.03:1 | AA large text | Lc 28.8 | Dividers and decoration only |
| #00778F text on white | 5.20:1 | AA | Lc 75.2 | Fine for body text |
| #00778F text on black | 4.03:1 | AA large text | Lc -26.5 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C9DDE4
oklch(88.5% 0.023 220.8)
-
Step 300
300
#A3C8D3
oklch(81% 0.042 217.8)
-
Step 400
400
#6EABBD
oklch(70.6% 0.068 218.5)
-
Step 500
500
#4296AD
oklch(63.1% 0.087 218.7)
-
Step 600
600 (this color)
#00778F
oklch(52.6% 0.095 218.4)
-
Step 700
700
#026C82
oklch(49.1% 0.088 218.5)
-
Step 800
800
#0C586A
oklch(42.7% 0.073 219)
-
Step 900
900
#164956
oklch(37.8% 0.057 218.1)
-
Step 950
950
#0F2B32
oklch(27.1% 0.036 216.6)
#00778F 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) | #687390 | 0.080 |
| Deuteranopia (no green cones) | #57688F | 0.070 |
| Tritanopia (no blue cones) | #007F7F | 0.041 |
| Achromatopsia (no color) | #6D6D6D | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00778F
#00778F
oklch(52.6% 0.095 218.4)
- #995641
#995641
oklch(52.7% 0.095 38.2)
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 #00778F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.012
- Sea Blue #047495 ΔE 0.015
- Deep Aqua #08787F ΔE 0.027
- Ocean Blue #03719C ΔE 0.031
- Bluegreen #017A79 ΔE 0.040
- Teal #008080 ΔE 0.042
- Deep Turquoise #017374 ΔE 0.043
- Muted Blue #3B719F ΔE 0.046
Use #00778F 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.