#64978F
Closest named color: Grey Teal (#5E9B8A). oklch(63.8% 0.056 183.6), rgb(100, 151, 143).
Aa
Black text reads best on this color (6.36:1).
About this color
#64978F is a medium-light, muted teal or cyan. In OKLCH its lightness is 64%, its chroma 0.056 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Grey Teal (#5E9B8A), ΔE 0.017 away. Black text reads best on it, at 6.36:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Grey Teal (#5E9B8A) |
| Black text | 6.36:1 |
| White text | 3.29:1 |
Values
| HEX | #64978F |
| RGB | rgb(100, 151, 143) |
| HSL | hsl(171, 20%, 49%) |
| OKLCH | oklch(63.8% 0.056 183.6) |
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 #64978F | 3.29:1 | AA large text | Lc -65.7 | Content text, not long reading |
| Black text on #64978F | 6.36:1 | AA | Lc 43.8 | Non-text elements, placeholder text |
| #64978F text on white | 3.29:1 | AA large text | Lc 60.3 | Content text, not long reading |
| #64978F text on black | 6.36:1 | AA | Lc -41.4 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CFDDDA
oklch(88.6% 0.016 181.7)
-
Step 300
300
#AEC7C2
oklch(80.9% 0.028 182.2)
-
Step 400
400
#83AAA3
oklch(70.7% 0.044 182.8)
-
Step 500
500 (this color)
#64978F
oklch(63.8% 0.056 183.6)
-
Step 600
600
#477F77
oklch(55.5% 0.061 183.9)
-
Step 700
700
#386B64
oklch(49% 0.056 184.1)
-
Step 800
800
#2F5852
oklch(42.8% 0.047 183.6)
-
Step 900
900
#2A4844
oklch(37.7% 0.037 185.1)
-
Step 950
950
#192A28
oklch(26.9% 0.023 186.7)
#64978F 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) | #92918F | 0.060 |
| Deuteranopia (no green cones) | #898B90 | 0.056 |
| Tritanopia (no blue cones) | #539994 | 0.017 |
| Achromatopsia (no color) | #8D8D8D | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64978F
#64978F
oklch(63.8% 0.056 183.6)
- #AA7E88
#AA7E88
oklch(63.9% 0.056 3.7)
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 #64978F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grey Teal #5E9B8A ΔE 0.017
- Dull Teal #5F9E8F ΔE 0.021
- Cadet Blue #5F9EA0 ΔE 0.027
- Sea #3C9992 ΔE 0.034
- Dusty Teal #4C9085 ΔE 0.036
- Green Grey #77926F ΔE 0.045
- Persian Green #2A9D8F ΔE 0.046
- Slate Green #658D6D ΔE 0.049
Use #64978F 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.