#64A3A6
Closest named color: Cadet Blue (#5F9EA0). oklch(67.4% 0.065 199.6), rgb(100, 163, 166).
Aa
Black text reads best on this color (7.33:1).
About this color
#64A3A6 is a medium-light, muted teal or cyan. In OKLCH its lightness is 67%, its chroma 0.065 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.017 away. Black text reads best on it, at 7.33:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (67%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 7.33:1 |
| White text | 2.86:1 |
Values
| HEX | #64A3A6 |
| RGB | rgb(100, 163, 166) |
| HSL | hsl(183, 27%, 52%) |
| OKLCH | oklch(67.4% 0.065 199.6) |
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 #64A3A6 | 2.86:1 | Fails | Lc -60.0 | Content text, not long reading |
| Black text on #64A3A6 | 7.33:1 | AAA | Lc 49.3 | Large or bold text, headings |
| #64A3A6 text on white | 2.86:1 | Fails | Lc 54.7 | Large or bold text, headings |
| #64A3A6 text on black | 7.33:1 | AAA | Lc -47.1 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1ECED
oklch(93.5% 0.012 203.5)
-
Step 200
200
#C9DEDF
oklch(88.5% 0.022 200.2)
-
Step 300
300
#A3C9CB
oklch(80.9% 0.04 200.3)
-
Step 400
400 (this color)
#64A3A6
oklch(67.4% 0.065 199.6)
-
Step 500
500
#42999D
oklch(63.2% 0.083 199.4)
-
Step 600
600
#148388
oklch(55.6% 0.09 199.8)
-
Step 700
700
#006F73
oklch(49.2% 0.084 199.2)
-
Step 800
800
#0A5A5E
oklch(42.6% 0.069 200.3)
-
Step 900
900
#164A4D
oklch(37.7% 0.054 200.6)
-
Step 950
950
#0F2C2D
oklch(27.2% 0.035 198.4)
#64A3A6 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) | #9B9EA6 | 0.067 |
| Deuteranopia (no green cones) | #8F95A6 | 0.062 |
| Tritanopia (no blue cones) | #47A7A4 | 0.027 |
| Achromatopsia (no color) | #999999 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64A3A6
#64A3A6
oklch(67.4% 0.065 199.6)
- #BB8786
#BB8786
oklch(67.4% 0.064 20.1)
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 #64A3A6, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.017
- Greyblue #77A1B5 ΔE 0.034
- Dull Teal #5F9E8F ΔE 0.035
- Grey Teal #5E9B8A ΔE 0.043
- Bluegrey #85A3B2 ΔE 0.044
- Bluey Grey #89A0B0 ΔE 0.048
- Light Sea Green #20B2AA ΔE 0.054
- Sea #3C9992 ΔE 0.055
Use #64A3A6 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.