#64A3BA
Closest named color: Greyblue (#77A1B5). oklch(68.2% 0.073 223.4), rgb(100, 163, 186).
Aa
Black text reads best on this color (7.48:1).
About this color
#64A3BA is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 68%, its chroma 0.073 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.020 away. Black text reads best on it, at 7.48:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.48:1 |
| White text | 2.80:1 |
Values
| HEX | #64A3BA |
| RGB | rgb(100, 163, 186) |
| HSL | hsl(196, 38%, 56%) |
| OKLCH | oklch(68.2% 0.073 223.4) |
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 #64A3BA | 2.80:1 | Fails | Lc -59.1 | Large or bold text, headings |
| Black text on #64A3BA | 7.48:1 | AAA | Lc 50.2 | Large or bold text, headings |
| #64A3BA text on white | 2.80:1 | Fails | Lc 53.8 | Large or bold text, headings |
| #64A3BA text on black | 7.48:1 | AAA | Lc -48.0 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C8DDE6
oklch(88.5% 0.026 225.3)
-
Step 300
300
#A1C8D6
oklch(80.9% 0.046 221.7)
-
Step 400
400 (this color)
#64A3BA
oklch(68.2% 0.073 223.4)
-
Step 500
500
#3E96B3
oklch(63.2% 0.093 223.1)
-
Step 600
600
#0C7F9F
oklch(55.5% 0.102 224.1)
-
Step 700
700
#006B87
oklch(49% 0.092 224)
-
Step 800
800
#05586E
oklch(42.8% 0.078 222.8)
-
Step 900
900
#134859
oklch(37.6% 0.061 223.7)
-
Step 950
950
#0E2A34
oklch(26.9% 0.038 224.5)
#64A3BA 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) | #96A0BB | 0.059 |
| Deuteranopia (no green cones) | #8996BA | 0.053 |
| Tritanopia (no blue cones) | #3BAAAA | 0.049 |
| Achromatopsia (no color) | #9A9A9A | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #64A3BA
#64A3BA
oklch(68.2% 0.073 223.4)
- #C08A74
#C08A74
oklch(68.1% 0.074 43.1)
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 #64A3BA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.020
- Bluegrey #85A3B2 ΔE 0.037
- Cadet Blue #5F9EA0 ΔE 0.039
- Bluey Grey #89A0B0 ΔE 0.042
- Cool Gray #8D99AE ΔE 0.051
- Turquoise Blue #06B1C4 ΔE 0.054
- Silver Lake Blue #778DA9 ΔE 0.060
- Blue Grey #758DA3 ΔE 0.062
Use #64A3BA 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.