#78A09B
Closest named color: Cadet Blue (#5F9EA0). oklch(67.5% 0.044 186.7), rgb(120, 160, 155).
Aa
Black text reads best on this color (7.30:1).
About this color
#78A09B is a medium-light, muted teal or cyan. In OKLCH its lightness is 67%, its chroma 0.044 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.029 away. Black text reads best on it, at 7.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 7.30:1 |
| White text | 2.87:1 |
Values
| HEX | #78A09B |
| RGB | rgb(120, 160, 155) |
| HSL | hsl(173, 17%, 55%) |
| OKLCH | oklch(67.5% 0.044 186.7) |
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 #78A09B | 2.87:1 | Fails | Lc -60.3 | Content text, not long reading |
| Black text on #78A09B | 7.30:1 | AAA | Lc 49.1 | Large or bold text, headings |
| #78A09B text on white | 2.87:1 | Fails | Lc 55.0 | Large or bold text, headings |
| #78A09B text on black | 7.30:1 | AAA | Lc -46.8 | Large or bold text, headings |
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 400.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4ECEB
oklch(93.7% 0.009 188.1)
-
Step 200
200
#CEDDDB
oklch(88.6% 0.016 187.3)
-
Step 300
300
#AEC7C3
oklch(81% 0.028 185)
-
Step 400
400 (this color)
#78A09B
oklch(67.5% 0.044 186.7)
-
Step 500
500
#61958F
oklch(63.1% 0.056 186.7)
-
Step 600
600
#467F79
oklch(55.6% 0.061 186.9)
-
Step 700
700
#376B66
oklch(49% 0.057 187.4)
-
Step 800
800
#2E5853
oklch(42.8% 0.048 185.7)
-
Step 900
900
#2A4845
oklch(37.7% 0.036 187.7)
-
Step 950
950
#192A28
oklch(26.9% 0.023 186.7)
#78A09B 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) | #9C9C9B | 0.047 |
| Deuteranopia (no green cones) | #94969C | 0.044 |
| Tritanopia (no blue cones) | #6CA29E | 0.014 |
| Achromatopsia (no color) | #989898 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #78A09B
#78A09B
oklch(67.5% 0.044 186.7)
- #B08C92
#B08C92
oklch(67.5% 0.044 7.1)
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 #78A09B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.029
- Dull Teal #5F9E8F ΔE 0.035
- Greyblue #77A1B5 ΔE 0.038
- Bluegrey #85A3B2 ΔE 0.039
- Bluey Grey #89A0B0 ΔE 0.040
- Grey Teal #5E9B8A ΔE 0.042
- Cool Grey #95A3A6 ΔE 0.043
- Grey Green #86A17D ΔE 0.045
Use #78A09B 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.